/* * Copyright (c) 2000-2003 Fabrice Bellard * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * multimedia converter based on the FFmpeg libraries */ #include "config.h" #include <ctype.h> #include <string.h> #include <math.h> #include <stdlib.h> #include <errno.h> #include <limits.h> #if HAVE_ISATTY #if HAVE_IO_H #include <io.h> #endif #if HAVE_UNISTD_H #include <unistd.h> #endif #endif #include "libavformat/avformat.h" #include "libavdevice/avdevice.h" #include "libswscale/swscale.h" #include "libswresample/swresample.h" #include "libavutil/opt.h" #include "libavutil/channel_layout.h" #include "libavutil/parseutils.h" #include "libavutil/samplefmt.h" #include "libavutil/fifo.h" #include "libavutil/intreadwrite.h" #include "libavutil/dict.h" #include "libavutil/mathematics.h" #include "libavutil/pixdesc.h" #include "libavutil/avstring.h" #include "libavutil/libm.h" #include "libavutil/imgutils.h" #include "libavutil/timestamp.h" #include "libavutil/bprint.h" #include "libavutil/time.h" #include "libavformat/os_support.h" #include "libavformat/ffm.h" // not public API # include "libavfilter/avcodec.h" # include "libavfilter/avfilter.h" # include "libavfilter/buffersrc.h" # include "libavfilter/buffersink.h" #if HAVE_SYS_RESOURCE_H #include <sys/time.h> #include <sys/types.h> #include <sys/resource.h> #elif HAVE_GETPROCESSTIMES #include <windows.h> #endif #if HAVE_GETPROCESSMEMORYINFO #include <windows.h> #include <psapi.h> #endif #if HAVE_SYS_SELECT_H #include <sys/select.h> #endif #if HAVE_TERMIOS_H #include <fcntl.h> #include <sys/ioctl.h> #include <sys/time.h> #include <termios.h> #elif HAVE_KBHIT #include <conio.h> #endif #if HAVE_PTHREADS #include <pthread.h> #endif #include <time.h> #include "ffmpeg.h" #include "cmdutils.h" #include "libavutil/avassert.h" const char program_name[] = "ffmpeg"; const int program_birth_year = 2000; static FILE *vstats_file; const char *const forced_keyframes_const_names[] = { "n", "n_forced", "prev_forced_n", "prev_forced_t", "t", NULL }; static void do_video_stats(OutputStream *ost, int frame_size); static int64_t getutime(void); static int64_t getmaxrss(void); static int run_as_daemon = 0; static int64_t video_size = 0; static int64_t audio_size = 0; static int64_t subtitle_size = 0; static int64_t extra_size = 0; static int nb_frames_dup = 0; static int nb_frames_drop = 0; static int64_t decode_error_stat[2]; static int current_time; AVIOContext *progress_avio = NULL; static uint8_t *subtitle_out; #if HAVE_PTHREADS /* signal to input threads that they should exit; set by the main thread */ static int transcoding_finished; #endif #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass" InputStream **input_streams = NULL; int nb_input_streams = 0; InputFile **input_files = NULL; int nb_input_files = 0; OutputStream **output_streams = NULL; int nb_output_streams = 0; OutputFile **output_files = NULL; int nb_output_files = 0; FilterGraph **filtergraphs; int nb_filtergraphs; #if HAVE_TERMIOS_H /* init terminal so that we can grab keys */ static struct termios oldtty; static int restore_tty; #endif static void free_input_threads(void); /* sub2video hack: Convert subtitles to video with alpha to insert them in filter graphs. This is a temporary solution until libavfilter gets real subtitles support. */ static int sub2video_get_blank_frame(InputStream *ist) { int ret; AVFrame *frame = ist->sub2video.frame; av_frame_unref(frame); ist->sub2video.frame->width = ist->sub2video.w; ist->sub2video.frame->height = ist->sub2video.h; ist->sub2video.frame->format = AV_PIX_FMT_RGB32; if ((ret = av_frame_get_buffer(frame, 32)) < 0) return ret; memset(frame->data[0], 0, frame->height * frame->linesize[0]); return 0; } static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h, AVSubtitleRect *r) { uint32_t *pal, *dst2; uint8_t *src, *src2; int x, y; if (r->type != SUBTITLE_BITMAP) { av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n"); return; } if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) { av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n"); return; } dst += r->y * dst_linesize + r->x * 4; src = r->pict.data[0]; pal = (uint32_t *)r->pict.data[1]; for (y = 0; y < r->h; y++) { dst2 = (uint32_t *)dst; src2 = src; for (x = 0; x < r->w; x++) *(dst2++) = pal[*(src2++)]; dst += dst_linesize; src += r->pict.linesize[0]; } } static void sub2video_push_ref(InputStream *ist, int64_t pts) { AVFrame *frame = ist->sub2video.frame; int i; av_assert1(frame->data[0]); ist->sub2video.last_pts = frame->pts = pts; for (i = 0; i < ist->nb_filters; i++) av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame, AV_BUFFERSRC_FLAG_KEEP_REF | AV_BUFFERSRC_FLAG_PUSH); } static void sub2video_update(InputStream *ist, AVSubtitle *sub) { int w = ist->sub2video.w, h = ist->sub2video.h; AVFrame *frame = ist->sub2video.frame; int8_t *dst; int dst_linesize; int num_rects, i; int64_t pts, end_pts; if (!frame) return; if (sub) { pts = av_rescale_q(sub->pts + sub->start_display_time * 1000, AV_TIME_BASE_Q, ist->st->time_base); end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000, AV_TIME_BASE_Q, ist->st->time_base); num_rects = sub->num_rects; } else { pts = ist->sub2video.end_pts; end_pts = INT64_MAX; num_rects = 0; } if (sub2video_get_blank_frame(ist) < 0) { av_log(ist->st->codec, AV_LOG_ERROR, "Impossible to get a blank canvas.\n"); return; } dst = frame->data [0]; dst_linesize = frame->linesize[0]; for (i = 0; i < num_rects; i++) sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]); sub2video_push_ref(ist, pts); ist->sub2video.end_pts = end_pts; } static void sub2video_heartbeat(InputStream *ist, int64_t pts) { InputFile *infile = input_files[ist->file_index]; int i, j, nb_reqs; int64_t pts2; /* When a frame is read from a file, examine all sub2video streams in the same file and send the sub2video frame again. Otherwise, decoded video frames could be accumulating in the filter graph while a filter (possibly overlay) is desperately waiting for a subtitle frame. */ for (i = 0; i < infile->nb_streams; i++) { InputStream *ist2 = input_streams[infile->ist_index + i]; if (!ist2->sub2video.frame) continue; /* subtitles seem to be usually muxed ahead of other streams; if not, substracting a larger time here is necessary */ pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1; /* do not send the heartbeat frame if the subtitle is already ahead */ if (pts2 <= ist2->sub2video.last_pts) continue; if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0]) sub2video_update(ist2, NULL); for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++) nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter); if (nb_reqs) sub2video_push_ref(ist2, pts2); } } static void sub2video_flush(InputStream *ist) { int i; for (i = 0; i < ist->nb_filters; i++) av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0); } /* end of sub2video hack */ void term_exit(void) { av_log(NULL, AV_LOG_QUIET, "%s", ""); #if HAVE_TERMIOS_H if(restore_tty) tcsetattr (0, TCSANOW, &oldtty); #endif } static volatile int received_sigterm = 0; static volatile int received_nb_signals = 0; static void sigterm_handler(int sig) { received_sigterm = sig; received_nb_signals++; term_exit(); if(received_nb_signals > 3) exit_program(123); } void term_init(void) { #if HAVE_TERMIOS_H if(!run_as_daemon){ struct termios tty; int istty = 1; #if HAVE_ISATTY istty = isatty(0) && isatty(2); #endif if (istty && tcgetattr (0, &tty) == 0) { oldtty = tty; restore_tty = 1; tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |INLCR|IGNCR|ICRNL|IXON); tty.c_oflag |= OPOST; tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); tty.c_cflag &= ~(CSIZE|PARENB); tty.c_cflag |= CS8; tty.c_cc[VMIN] = 1; tty.c_cc[VTIME] = 0; tcsetattr (0, TCSANOW, &tty); } signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */ } #endif avformat_network_deinit(); signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ #ifdef SIGXCPU signal(SIGXCPU, sigterm_handler); #endif } /* read a key without blocking */ static int read_key(void) { unsigned char ch; #if HAVE_TERMIOS_H int n = 1; struct timeval tv; fd_set rfds; FD_ZERO(&rfds); FD_SET(0, &rfds); tv.tv_sec = 0; tv.tv_usec = 0; n = select(1, &rfds, NULL, NULL, &tv); if (n > 0) { n = read(0, &ch, 1); if (n == 1) return ch; return n; } #elif HAVE_KBHIT # if HAVE_PEEKNAMEDPIPE static int is_pipe; static HANDLE input_handle; DWORD dw, nchars; if(!input_handle){ input_handle = GetStdHandle(STD_INPUT_HANDLE); is_pipe = !GetConsoleMode(input_handle, &dw); } if (stdin->_cnt > 0) { read(0, &ch, 1); return ch; } if (is_pipe) { /* When running under a GUI, you will end here. */ if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) { // input pipe may have been closed by the program that ran ffmpeg return -1; } //Read it if(nchars != 0) { read(0, &ch, 1); return ch; }else{ return -1; } } # endif if(kbhit()) return(getch()); #endif return -1; } static int decode_interrupt_cb(void *ctx) { return received_nb_signals > 1; } const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }; static void ffmpeg_cleanup(int ret) { int i, j; if (do_benchmark) { int maxrss = getmaxrss() / 1024; printf("bench: maxrss=%ikB\n", maxrss); } for (i = 0; i < nb_filtergraphs; i++) { avfilter_graph_free(&filtergraphs[i]->graph); for (j = 0; j < filtergraphs[i]->nb_inputs; j++) { av_freep(&filtergraphs[i]->inputs[j]->name); av_freep(&filtergraphs[i]->inputs[j]); } av_freep(&filtergraphs[i]->inputs); for (j = 0; j < filtergraphs[i]->nb_outputs; j++) { av_freep(&filtergraphs[i]->outputs[j]->name); av_freep(&filtergraphs[i]->outputs[j]); } av_freep(&filtergraphs[i]->outputs); av_freep(&filtergraphs[i]->graph_desc); av_freep(&filtergraphs[i]); } av_freep(&filtergraphs); av_freep(&subtitle_out); /* close files */ for (i = 0; i < nb_output_files; i++) { AVFormatContext *s = output_files[i]->ctx; if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb) avio_close(s->pb); avformat_free_context(s); av_dict_free(&output_files[i]->opts); av_freep(&output_files[i]); } for (i = 0; i < nb_output_streams; i++) { AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters; while (bsfc) { AVBitStreamFilterContext *next = bsfc->next; av_bitstream_filter_close(bsfc); bsfc = next; } output_streams[i]->bitstream_filters = NULL; avcodec_free_frame(&output_streams[i]->filtered_frame); av_freep(&output_streams[i]->forced_keyframes); av_expr_free(output_streams[i]->forced_keyframes_pexpr); av_freep(&output_streams[i]->avfilter); av_freep(&output_streams[i]->logfile_prefix); av_freep(&output_streams[i]); } #if HAVE_PTHREADS free_input_threads(); #endif for (i = 0; i < nb_input_files; i++) { avformat_close_input(&input_files[i]->ctx); av_freep(&input_files[i]); } for (i = 0; i < nb_input_streams; i++) { av_frame_free(&input_streams[i]->decoded_frame); av_frame_free(&input_streams[i]->filter_frame); av_dict_free(&input_streams[i]->opts); avsubtitle_free(&input_streams[i]->prev_sub.subtitle); av_frame_free(&input_streams[i]->sub2video.frame); av_freep(&input_streams[i]->filters); av_freep(&input_streams[i]); } if (vstats_file) fclose(vstats_file); av_free(vstats_filename); av_freep(&input_streams); av_freep(&input_files); av_freep(&output_streams); av_freep(&output_files); uninit_opts(); avformat_network_deinit(); if (received_sigterm) { av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n", (int) received_sigterm); } term_exit(); } void assert_avoptions(AVDictionary *m) { AVDictionaryEntry *t; if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) { av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key); exit_program(1); } } static void abort_codec_experimental(AVCodec *c, int encoder) { exit_program(1); } static void update_benchmark(const char *fmt, ...) { if (do_benchmark_all) { int64_t t = getutime(); va_list va; char buf[1024]; if (fmt) { va_start(va, fmt); vsnprintf(buf, sizeof(buf), fmt, va); va_end(va); printf("bench: %8"PRIu64" %s \n", t - current_time, buf); } current_time = t; } } static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost) { AVBitStreamFilterContext *bsfc = ost->bitstream_filters; AVCodecContext *avctx = ost->st->codec; int ret; if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) || (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0)) pkt->pts = pkt->dts = AV_NOPTS_VALUE; /* * Audio encoders may split the packets -- #frames in != #packets out. * But there is no reordering, so we can limit the number of output packets * by simply dropping them here. * Counting encoded video frames needs to be done separately because of * reordering, see do_video_out() */ if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) { if (ost->frame_number >= ost->max_frames) { av_free_packet(pkt); return; } ost->frame_number++; } while (bsfc) { AVPacket new_pkt = *pkt; int a = av_bitstream_filter_filter(bsfc, avctx, NULL, &new_pkt.data, &new_pkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY); if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) { uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow if(t) { memcpy(t, new_pkt.data, new_pkt.size); memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE); new_pkt.data = t; new_pkt.buf = NULL; a = 1; } else a = AVERROR(ENOMEM); } if (a > 0) { av_free_packet(pkt); new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size, av_buffer_default_free, NULL, 0); if (!new_pkt.buf) exit_program(1); } else if (a < 0) { av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s", bsfc->filter->name, pkt->stream_index, avctx->codec ? avctx->codec->name : "copy"); print_error("", a); if (exit_on_error) exit_program(1); } *pkt = new_pkt; bsfc = bsfc->next; } if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) && (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && pkt->dts != AV_NOPTS_VALUE && ost->last_mux_dts != AV_NOPTS_VALUE) { int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT); if (pkt->dts < max) { int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG; av_log(s, loglevel, "Non-monotonous DTS in output stream " "%d:%d; previous: %"PRId64", current: %"PRId64"; ", ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts); if (exit_on_error) { av_log(NULL, AV_LOG_FATAL, "aborting.\n"); exit_program(1); } av_log(s, loglevel, "changing to %"PRId64". This may result " "in incorrect timestamps in the output file.\n", max); if(pkt->pts >= pkt->dts) pkt->pts = FFMAX(pkt->pts, max); pkt->dts = max; } } ost->last_mux_dts = pkt->dts; pkt->stream_index = ost->index; if (debug_ts) { av_log(NULL, AV_LOG_INFO, "muxer <- type:%s " "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n", av_get_media_type_string(ost->st->codec->codec_type), av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base), av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base), pkt->size ); } ret = av_interleaved_write_frame(s, pkt); if (ret < 0) { print_error("av_interleaved_write_frame()", ret); exit_program(1); } } static void close_output_stream(OutputStream *ost) { OutputFile *of = output_files[ost->file_index]; ost->finished = 1; if (of->shortest) { int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q); of->recording_time = FFMIN(of->recording_time, end); } } static int check_recording_time(OutputStream *ost) { OutputFile *of = output_files[ost->file_index]; if (of->recording_time != INT64_MAX && av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time, AV_TIME_BASE_Q) >= 0) { close_output_stream(ost); return 0; } return 1; } static void do_audio_out(AVFormatContext *s, OutputStream *ost, AVFrame *frame) { AVCodecContext *enc = ost->st->codec; AVPacket pkt; int got_packet = 0; av_init_packet(&pkt); pkt.data = NULL; pkt.size = 0; if (!check_recording_time(ost)) return; if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0) frame->pts = ost->sync_opts; ost->sync_opts = frame->pts + frame->nb_samples; av_assert0(pkt.size || !pkt.data); update_benchmark(NULL); if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) { av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n"); exit_program(1); } update_benchmark("encode_audio %d.%d", ost->file_index, ost->index); if (got_packet) { if (pkt.pts != AV_NOPTS_VALUE) pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); if (pkt.dts != AV_NOPTS_VALUE) pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base); if (pkt.duration > 0) pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base); if (debug_ts) { av_log(NULL, AV_LOG_INFO, "encoder -> type:audio " "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n", av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base), av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base)); } audio_size += pkt.size; write_frame(s, &pkt, ost); av_free_packet(&pkt); } } static void do_subtitle_out(AVFormatContext *s, OutputStream *ost, InputStream *ist, AVSubtitle *sub) { int subtitle_out_max_size = 1024 * 1024; int subtitle_out_size, nb, i; AVCodecContext *enc; AVPacket pkt; int64_t pts; if (sub->pts == AV_NOPTS_VALUE) { av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n"); if (exit_on_error) exit_program(1); return; } enc = ost->st->codec; if (!subtitle_out) { subtitle_out = av_malloc(subtitle_out_max_size); } /* Note: DVB subtitle need one packet to draw them and one other packet to clear them */ /* XXX: signal it in the codec context ? */ if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) nb = 2; else nb = 1; /* shift timestamp to honor -ss and make check_recording_time() work with -t */ pts = sub->pts; if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE) pts -= output_files[ost->file_index]->start_time; for (i = 0; i < nb; i++) { ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base); if (!check_recording_time(ost)) return; sub->pts = pts; // start_display_time is required to be 0 sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q); sub->end_display_time -= sub->start_display_time; sub->start_display_time = 0; if (i == 1) sub->num_rects = 0; subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out, subtitle_out_max_size, sub); if (subtitle_out_size < 0) { av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n"); exit_program(1); } av_init_packet(&pkt); pkt.data = subtitle_out; pkt.size = subtitle_out_size; pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base); pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base); if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) { /* XXX: the pts correction is handled here. Maybe handling it in the codec would be better */ if (i == 0) pkt.pts += 90 * sub->start_display_time; else pkt.pts += 90 * sub->end_display_time; } subtitle_size += pkt.size; write_frame(s, &pkt, ost); } } static void do_video_out(AVFormatContext *s, OutputStream *ost, AVFrame *in_picture) { int ret, format_video_sync; AVPacket pkt; AVCodecContext *enc = ost->st->codec; int nb_frames, i; double sync_ipts, delta; double duration = 0; int frame_size = 0; InputStream *ist = NULL; if (ost->source_index >= 0) ist = input_streams[ost->source_index]; if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num) duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)); sync_ipts = in_picture->pts; delta = sync_ipts - ost->sync_opts + duration; /* by default, we output a single frame */ nb_frames = 1; format_video_sync = video_sync_method; if (format_video_sync == VSYNC_AUTO) format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR; switch (format_video_sync) { case VSYNC_CFR: // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c if (delta < -1.1) nb_frames = 0; else if (delta > 1.1) nb_frames = lrintf(delta); break; case VSYNC_VFR: if (delta <= -0.6) nb_frames = 0; else if (delta > 0.6) ost->sync_opts = lrint(sync_ipts); break; case VSYNC_DROP: case VSYNC_PASSTHROUGH: ost->sync_opts = lrint(sync_ipts); break; default: av_assert0(0); } nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number); if (nb_frames == 0) { nb_frames_drop++; av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n"); return; } else if (nb_frames > 1) { if (nb_frames > dts_error_threshold * 30) { av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1); nb_frames_drop++; return; } nb_frames_dup += nb_frames - 1; av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1); } /* duplicates frame if needed */ for (i = 0; i < nb_frames; i++) { av_init_packet(&pkt); pkt.data = NULL; pkt.size = 0; in_picture->pts = ost->sync_opts; #if 1 if (!check_recording_time(ost)) #else if (ost->frame_number >= ost->max_frames) #endif return; if (s->oformat->flags & AVFMT_RAWPICTURE && enc->codec->id == AV_CODEC_ID_RAWVIDEO) { /* raw pictures are written as AVPicture structure to avoid any copies. We support temporarily the older method. */ enc->coded_frame->interlaced_frame = in_picture->interlaced_frame; enc->coded_frame->top_field_first = in_picture->top_field_first; if (enc->coded_frame->interlaced_frame) enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT; else enc->field_order = AV_FIELD_PROGRESSIVE; pkt.data = (uint8_t *)in_picture; pkt.size = sizeof(AVPicture); pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base); pkt.flags |= AV_PKT_FLAG_KEY; video_size += pkt.size; write_frame(s, &pkt, ost); } else { int got_packet, forced_keyframe = 0; double pts_time; if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) && ost->top_field_first >= 0) in_picture->top_field_first = !!ost->top_field_first; if (in_picture->interlaced_frame) { if (enc->codec->id == AV_CODEC_ID_MJPEG) enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB; else enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT; } else enc->field_order = AV_FIELD_PROGRESSIVE; in_picture->quality = ost->st->codec->global_quality; if (!enc->me_threshold) in_picture->pict_type = 0; pts_time = in_picture->pts != AV_NOPTS_VALUE ? in_picture->pts * av_q2d(enc->time_base) : NAN; if (ost->forced_kf_index < ost->forced_kf_count && in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) { ost->forced_kf_index++; forced_keyframe = 1; } else if (ost->forced_keyframes_pexpr) { double res; ost->forced_keyframes_expr_const_values[FKF_T] = pts_time; res = av_expr_eval(ost->forced_keyframes_pexpr, ost->forced_keyframes_expr_const_values, NULL); av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n", ost->forced_keyframes_expr_const_values[FKF_N], ost->forced_keyframes_expr_const_values[FKF_N_FORCED], ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N], ost->forced_keyframes_expr_const_values[FKF_T], ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T], res); if (res) { forced_keyframe = 1; ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = ost->forced_keyframes_expr_const_values[FKF_N]; ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = ost->forced_keyframes_expr_const_values[FKF_T]; ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1; } ost->forced_keyframes_expr_const_values[FKF_N] += 1; } if (forced_keyframe) { in_picture->pict_type = AV_PICTURE_TYPE_I; av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time); } update_benchmark(NULL); ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet); update_benchmark("encode_video %d.%d", ost->file_index, ost->index); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n"); exit_program(1); } if (got_packet) { if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY)) pkt.pts = ost->sync_opts; if (pkt.pts != AV_NOPTS_VALUE) pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); if (pkt.dts != AV_NOPTS_VALUE) pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base); if (debug_ts) { av_log(NULL, AV_LOG_INFO, "encoder -> type:video " "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n", av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base), av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base)); } frame_size = pkt.size; video_size += pkt.size; write_frame(s, &pkt, ost); av_free_packet(&pkt); /* if two pass, output log */ if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); } } } ost->sync_opts++; /* * For video, number of frames in == number of packets out. * But there may be reordering, so we can't throw away frames on encoder * flush, we need to limit them here, before they go into encoder. */ ost->frame_number++; if (vstats_filename && frame_size) do_video_stats(ost, frame_size); } } static double psnr(double d) { return -10.0 * log(d) / log(10.0); } static void do_video_stats(OutputStream *ost, int frame_size) { AVCodecContext *enc; int frame_number; double ti1, bitrate, avg_bitrate; /* this is executed just the first time do_video_stats is called */ if (!vstats_file) { vstats_file = fopen(vstats_filename, "w"); if (!vstats_file) { perror("fopen"); exit_program(1); } } enc = ost->st->codec; if (enc->codec_type == AVMEDIA_TYPE_VIDEO) { frame_number = ost->st->nb_frames; fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA); if (enc->flags&CODEC_FLAG_PSNR) fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0))); fprintf(vstats_file,"f_size= %6d ", frame_size); /* compute pts value */ ti1 = ost->st->pts.val * av_q2d(enc->time_base); if (ti1 < 0.01) ti1 = 0.01; bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0; avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0; fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ", (double)video_size / 1024, ti1, bitrate, avg_bitrate); fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type)); } } /** * Get and encode new output from any of the filtergraphs, without causing * activity. * * @return 0 for success, <0 for severe errors */ static int reap_filters(void) { AVFrame *filtered_frame = NULL; int i; int64_t frame_pts; /* Reap all buffers present in the buffer sinks */ for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = output_streams[i]; OutputFile *of = output_files[ost->file_index]; int ret = 0; if (!ost->filter) continue; if (!ost->filtered_frame && !(ost->filtered_frame = avcodec_alloc_frame())) { return AVERROR(ENOMEM); } else avcodec_get_frame_defaults(ost->filtered_frame); filtered_frame = ost->filtered_frame; while (1) { ret = av_buffersink_get_frame_flags(ost->filter->filter, filtered_frame, AV_BUFFERSINK_FLAG_NO_REQUEST); if (ret < 0) { if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) { av_log(NULL, AV_LOG_WARNING, "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret)); } break; } frame_pts = AV_NOPTS_VALUE; if (filtered_frame->pts != AV_NOPTS_VALUE) { int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time; filtered_frame->pts = frame_pts = av_rescale_q(filtered_frame->pts, ost->filter->filter->inputs[0]->time_base, ost->st->codec->time_base) - av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->codec->time_base); } //if (ost->source_index >= 0) // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold switch (ost->filter->filter->inputs[0]->type) { case AVMEDIA_TYPE_VIDEO: filtered_frame->pts = frame_pts; if (!ost->frame_aspect_ratio.num) ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio; do_video_out(of->ctx, ost, filtered_frame); break; case AVMEDIA_TYPE_AUDIO: filtered_frame->pts = frame_pts; if (!(ost->st->codec->codec->capabilities & CODEC_CAP_PARAM_CHANGE) && ost->st->codec->channels != av_frame_get_channels(filtered_frame)) { av_log(NULL, AV_LOG_ERROR, "Audio filter graph output is not normalized and encoder does not support parameter changes\n"); break; } do_audio_out(of->ctx, ost, filtered_frame); break; default: // TODO support subtitle filters av_assert0(0); } av_frame_unref(filtered_frame); } } return 0; } static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time) { char buf[1024]; AVBPrint buf_script; OutputStream *ost; AVFormatContext *oc; int64_t total_size; AVCodecContext *enc; int frame_number, vid, i; double bitrate; int64_t pts = INT64_MIN; static int64_t last_time = -1; static int qp_histogram[52]; int hours, mins, secs, us; if (!print_stats && !is_last_report && !progress_avio) return; if (!is_last_report) { if (last_time == -1) { last_time = cur_time; return; } if ((cur_time - last_time) < 500000) return; last_time = cur_time; } oc = output_files[0]->ctx; total_size = avio_size(oc->pb); if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too total_size = avio_tell(oc->pb); buf[0] = '\0'; vid = 0; av_bprint_init(&buf_script, 0, 1); for (i = 0; i < nb_output_streams; i++) { float q = -1; ost = output_streams[i]; enc = ost->st->codec; if (!ost->stream_copy && enc->coded_frame) q = enc->coded_frame->quality / (float)FF_QP2LAMBDA; if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) { snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q); av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n", ost->file_index, ost->index, q); } if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) { float fps, t = (cur_time-timer_start) / 1000000.0; frame_number = ost->frame_number; fps = t > 1 ? frame_number / t : 0; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ", frame_number, fps < 9.95, fps, q); av_bprintf(&buf_script, "frame=%d\n", frame_number); av_bprintf(&buf_script, "fps=%.1f\n", fps); av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n", ost->file_index, ost->index, q); if (is_last_report) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L"); if (qp_hist) { int j; int qp = lrintf(q); if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram)) qp_histogram[qp]++; for (j = 0; j < 32; j++) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1))); } if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) { int j; double error, error_sum = 0; double scale, scale_sum = 0; double p; char type[3] = { 'Y','U','V' }; snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR="); for (j = 0; j < 3; j++) { if (is_last_report) { error = enc->error[j]; scale = enc->width * enc->height * 255.0 * 255.0 * frame_number; } else { error = enc->coded_frame->error[j]; scale = enc->width * enc->height * 255.0 * 255.0; } if (j) scale /= 4; error_sum += error; scale_sum += scale; p = psnr(error / scale); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p); av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n", ost->file_index, ost->index, type[j] | 32, p); } p = psnr(error_sum / scale_sum); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum)); av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n", ost->file_index, ost->index, p); } vid = 1; } /* compute min output value */ if ((is_last_report || !ost->finished) && ost->st->pts.val != AV_NOPTS_VALUE) pts = FFMAX(pts, av_rescale_q(ost->st->pts.val, ost->st->time_base, AV_TIME_BASE_Q)); } secs = pts / AV_TIME_BASE; us = pts % AV_TIME_BASE; mins = secs / 60; secs %= 60; hours = mins / 60; mins %= 60; bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1; if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "size=N/A time="); else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "size=%8.0fkB time=", total_size / 1024.0); snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%02d:%02d:%02d.%02d ", hours, mins, secs, (100 * us) / AV_TIME_BASE); if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "bitrate=N/A"); else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "bitrate=%6.1fkbits/s", bitrate); if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n"); else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size); av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts); av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n", hours, mins, secs, us); if (nb_frames_dup || nb_frames_drop) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d", nb_frames_dup, nb_frames_drop); av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup); av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop); if (print_stats || is_last_report) { if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) { fprintf(stderr, "%s \r", buf); } else av_log(NULL, AV_LOG_INFO, "%s \r", buf); fflush(stderr); } if (progress_avio) { av_bprintf(&buf_script, "progress=%s\n", is_last_report ? "end" : "continue"); avio_write(progress_avio, buf_script.str, FFMIN(buf_script.len, buf_script.size - 1)); avio_flush(progress_avio); av_bprint_finalize(&buf_script, NULL); if (is_last_report) { avio_close(progress_avio); progress_avio = NULL; } } if (is_last_report) { int64_t raw= audio_size + video_size + subtitle_size + extra_size; av_log(NULL, AV_LOG_INFO, "\n"); av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0f global headers:%1.0fkB muxing overhead %f%%\n", video_size / 1024.0, audio_size / 1024.0, subtitle_size / 1024.0, extra_size / 1024.0, 100.0 * (total_size - raw) / raw ); if(video_size + audio_size + subtitle_size + extra_size == 0){ av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n"); } } } static void flush_encoders(void) { int i, ret; for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = output_streams[i]; AVCodecContext *enc = ost->st->codec; AVFormatContext *os = output_files[ost->file_index]->ctx; int stop_encoding = 0; if (!ost->encoding_needed) continue; if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1) continue; if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO) continue; for (;;) { int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL; const char *desc; int64_t *size; switch (ost->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: encode = avcodec_encode_audio2; desc = "Audio"; size = &audio_size; break; case AVMEDIA_TYPE_VIDEO: encode = avcodec_encode_video2; desc = "Video"; size = &video_size; break; default: stop_encoding = 1; } if (encode) { AVPacket pkt; int got_packet; av_init_packet(&pkt); pkt.data = NULL; pkt.size = 0; update_benchmark(NULL); ret = encode(enc, &pkt, NULL, &got_packet); update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc); exit_program(1); } *size += pkt.size; if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); } if (!got_packet) { stop_encoding = 1; break; } if (pkt.pts != AV_NOPTS_VALUE) pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); if (pkt.dts != AV_NOPTS_VALUE) pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base); if (pkt.duration > 0) pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base); write_frame(os, &pkt, ost); if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) { do_video_stats(ost, pkt.size); } } if (stop_encoding) break; } } } /* * Check whether a packet from ist should be written into ost at this time */ static int check_output_constraints(InputStream *ist, OutputStream *ost) { OutputFile *of = output_files[ost->file_index]; int ist_index = input_files[ist->file_index]->ist_index + ist->st->index; if (ost->source_index != ist_index) return 0; if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time) return 0; return 1; } static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt) { OutputFile *of = output_files[ost->file_index]; InputFile *f = input_files [ist->file_index]; int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time; int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base); int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base); AVPicture pict; AVPacket opkt; av_init_packet(&opkt); if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !ost->copy_initial_nonkeyframes) return; if (pkt->pts == AV_NOPTS_VALUE) { if (!ost->frame_number && ist->pts < start_time && !ost->copy_prior_start) return; } else { if (!ost->frame_number && pkt->pts < ist_tb_start_time && !ost->copy_prior_start) return; } if (of->recording_time != INT64_MAX && ist->pts >= of->recording_time + start_time) { close_output_stream(ost); return; } if (f->recording_time != INT64_MAX) { start_time = f->ctx->start_time; if (f->start_time != AV_NOPTS_VALUE) start_time += f->start_time; if (ist->pts >= f->recording_time + start_time) { close_output_stream(ost); return; } } /* force the input stream PTS */ if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) audio_size += pkt->size; else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { video_size += pkt->size; ost->sync_opts++; } else if (ost->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) { subtitle_size += pkt->size; } if (pkt->pts != AV_NOPTS_VALUE) opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time; else opkt.pts = AV_NOPTS_VALUE; if (pkt->dts == AV_NOPTS_VALUE) opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base); else opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base); opkt.dts -= ost_tb_start_time; if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) { int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size); if(!duration) duration = ist->st->codec->frame_size; opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts, (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last, ost->st->time_base) - ost_tb_start_time; } opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base); opkt.flags = pkt->flags; // FIXME remove the following 2 lines they shall be replaced by the bitstream filters if ( ost->st->codec->codec_id != AV_CODEC_ID_H264 && ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO && ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO && ost->st->codec->codec_id != AV_CODEC_ID_VC1 ) { if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY)) { opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0); if (!opkt.buf) exit_program(1); } } else { opkt.data = pkt->data; opkt.size = pkt->size; } if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) { /* store AVPicture in AVPacket, as expected by the output format */ avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height); opkt.data = (uint8_t *)&pict; opkt.size = sizeof(AVPicture); opkt.flags |= AV_PKT_FLAG_KEY; } write_frame(of->ctx, &opkt, ost); ost->st->codec->frame_number++; } int guess_input_channel_layout(InputStream *ist) { AVCodecContext *dec = ist->st->codec; if (!dec->channel_layout) { char layout_name[256]; if (dec->channels > ist->guess_layout_max) return 0; dec->channel_layout = av_get_default_channel_layout(dec->channels); if (!dec->channel_layout) return 0; av_get_channel_layout_string(layout_name, sizeof(layout_name), dec->channels, dec->channel_layout); av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream " "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name); } return 1; } static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output) { AVFrame *decoded_frame, *f; AVCodecContext *avctx = ist->st->codec; int i, ret, err = 0, resample_changed; AVRational decoded_frame_tb; if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame())) return AVERROR(ENOMEM); if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc())) return AVERROR(ENOMEM); decoded_frame = ist->decoded_frame; update_benchmark(NULL); ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt); update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index); if (ret >= 0 && avctx->sample_rate <= 0) { av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate); ret = AVERROR_INVALIDDATA; } if (*got_output || ret<0 || pkt->size) decode_error_stat[ret<0] ++; if (!*got_output || ret < 0) { if (!pkt->size) { for (i = 0; i < ist->nb_filters; i++) #if 1 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0); #else av_buffersrc_add_frame(ist->filters[i]->filter, NULL); #endif } return ret; } #if 1 /* increment next_dts to use for the case where the input stream does not have timestamps or there are multiple frames in the packet */ ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) / avctx->sample_rate; ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) / avctx->sample_rate; #endif resample_changed = ist->resample_sample_fmt != decoded_frame->format || ist->resample_channels != avctx->channels || ist->resample_channel_layout != decoded_frame->channel_layout || ist->resample_sample_rate != decoded_frame->sample_rate; if (resample_changed) { char layout1[64], layout2[64]; if (!guess_input_channel_layout(ist)) { av_log(NULL, AV_LOG_FATAL, "Unable to find default channel " "layout for Input Stream #%d.%d\n", ist->file_index, ist->st->index); exit_program(1); } decoded_frame->channel_layout = avctx->channel_layout; av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels, ist->resample_channel_layout); av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels, decoded_frame->channel_layout); av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n", ist->file_index, ist->st->index, ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt), ist->resample_channels, layout1, decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format), avctx->channels, layout2); ist->resample_sample_fmt = decoded_frame->format; ist->resample_sample_rate = decoded_frame->sample_rate; ist->resample_channel_layout = decoded_frame->channel_layout; ist->resample_channels = avctx->channels; for (i = 0; i < nb_filtergraphs; i++) if (ist_in_filtergraph(filtergraphs[i], ist)) { FilterGraph *fg = filtergraphs[i]; int j; if (configure_filtergraph(fg) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n"); exit_program(1); } for (j = 0; j < fg->nb_outputs; j++) { OutputStream *ost = fg->outputs[j]->ost; if (ost->enc->type == AVMEDIA_TYPE_AUDIO && !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) av_buffersink_set_frame_size(ost->filter->filter, ost->st->codec->frame_size); } } } /* if the decoder provides a pts, use it instead of the last packet pts. the decoder could be delaying output by a packet or more. */ if (decoded_frame->pts != AV_NOPTS_VALUE) { ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q); decoded_frame_tb = avctx->time_base; } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) { decoded_frame->pts = decoded_frame->pkt_pts; pkt->pts = AV_NOPTS_VALUE; decoded_frame_tb = ist->st->time_base; } else if (pkt->pts != AV_NOPTS_VALUE) { decoded_frame->pts = pkt->pts; pkt->pts = AV_NOPTS_VALUE; decoded_frame_tb = ist->st->time_base; }else { decoded_frame->pts = ist->dts; decoded_frame_tb = AV_TIME_BASE_Q; } if (decoded_frame->pts != AV_NOPTS_VALUE) decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts, (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last, (AVRational){1, ist->st->codec->sample_rate}); for (i = 0; i < ist->nb_filters; i++) { if (i < ist->nb_filters - 1) { f = ist->filter_frame; err = av_frame_ref(f, decoded_frame); if (err < 0) break; } else f = decoded_frame; err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH); if (err == AVERROR_EOF) err = 0; /* ignore */ if (err < 0) break; } decoded_frame->pts = AV_NOPTS_VALUE; av_frame_unref(ist->filter_frame); av_frame_unref(decoded_frame); return err < 0 ? err : ret; } static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output) { AVFrame *decoded_frame, *f; void *buffer_to_free = NULL; int i, ret = 0, err = 0, resample_changed; int64_t best_effort_timestamp; AVRational *frame_sample_aspect; if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc())) return AVERROR(ENOMEM); if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc())) return AVERROR(ENOMEM); decoded_frame = ist->decoded_frame; pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base); update_benchmark(NULL); ret = avcodec_decode_video2(ist->st->codec, decoded_frame, got_output, pkt); update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index); if (*got_output || ret<0 || pkt->size) decode_error_stat[ret<0] ++; if (!*got_output || ret < 0) { if (!pkt->size) { for (i = 0; i < ist->nb_filters; i++) #if 1 av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0); #else av_buffersrc_add_frame(ist->filters[i]->filter, NULL); #endif } return ret; } if(ist->top_field_first>=0) decoded_frame->top_field_first = ist->top_field_first; best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame); if(best_effort_timestamp != AV_NOPTS_VALUE) ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q); if (debug_ts) { av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video " "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d \n", ist->st->index, av_ts2str(decoded_frame->pts), av_ts2timestr(decoded_frame->pts, &ist->st->time_base), best_effort_timestamp, av_ts2timestr(best_effort_timestamp, &ist->st->time_base), decoded_frame->key_frame, decoded_frame->pict_type); } pkt->size = 0; if (ist->st->sample_aspect_ratio.num) decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio; resample_changed = ist->resample_width != decoded_frame->width || ist->resample_height != decoded_frame->height || ist->resample_pix_fmt != decoded_frame->format; if (resample_changed) { av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n", ist->file_index, ist->st->index, ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt), decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format)); ist->resample_width = decoded_frame->width; ist->resample_height = decoded_frame->height; ist->resample_pix_fmt = decoded_frame->format; for (i = 0; i < nb_filtergraphs; i++) { if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters && configure_filtergraph(filtergraphs[i]) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n"); exit_program(1); } } } frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio"); for (i = 0; i < ist->nb_filters; i++) { if (!frame_sample_aspect->num) *frame_sample_aspect = ist->st->sample_aspect_ratio; if (i < ist->nb_filters - 1) { f = ist->filter_frame; err = av_frame_ref(f, decoded_frame); if (err < 0) break; } else f = decoded_frame; ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH); if (ret == AVERROR_EOF) { ret = 0; /* ignore */ } else if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Failed to inject frame into filter network: %s\n", av_err2str(ret)); exit_program(1); } } av_frame_unref(ist->filter_frame); av_frame_unref(decoded_frame); av_free(buffer_to_free); return err < 0 ? err : ret; } static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output) { AVSubtitle subtitle; int i, ret = avcodec_decode_subtitle2(ist->st->codec, &subtitle, got_output, pkt); if (*got_output || ret<0 || pkt->size) decode_error_stat[ret<0] ++; if (ret < 0 || !*got_output) { if (!pkt->size) sub2video_flush(ist); return ret; } if (ist->fix_sub_duration) { if (ist->prev_sub.got_output) { int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts, 1000, AV_TIME_BASE); if (end < ist->prev_sub.subtitle.end_display_time) { av_log(ist->st->codec, AV_LOG_DEBUG, "Subtitle duration reduced from %d to %d\n", ist->prev_sub.subtitle.end_display_time, end); ist->prev_sub.subtitle.end_display_time = end; } } FFSWAP(int, *got_output, ist->prev_sub.got_output); FFSWAP(int, ret, ist->prev_sub.ret); FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle); } sub2video_update(ist, &subtitle); if (!*got_output || !subtitle.num_rects) return ret; for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = output_streams[i]; if (!check_output_constraints(ist, ost) || !ost->encoding_needed) continue; do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle); } avsubtitle_free(&subtitle); return ret; } /* pkt = NULL means EOF (needed to flush decoder buffers) */ static int output_packet(InputStream *ist, const AVPacket *pkt) { int ret = 0, i; int got_output = 0; AVPacket avpkt; if (!ist->saw_first_ts) { ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0; ist->pts = 0; if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) { ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q); ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong } ist->saw_first_ts = 1; } if (ist->next_dts == AV_NOPTS_VALUE) ist->next_dts = ist->dts; if (ist->next_pts == AV_NOPTS_VALUE) ist->next_pts = ist->pts; if (pkt == NULL) { /* EOF handling */ av_init_packet(&avpkt); avpkt.data = NULL; avpkt.size = 0; goto handle_eof; } else { avpkt = *pkt; } if (pkt->dts != AV_NOPTS_VALUE) { ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q); if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed) ist->next_pts = ist->pts = ist->dts; } // while we have more to decode or while the decoder did output something on EOF while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) { int duration; handle_eof: ist->pts = ist->next_pts; ist->dts = ist->next_dts; if (avpkt.size && avpkt.size != pkt->size) { av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING, "Multiple frames in a packet from stream %d\n", pkt->stream_index); ist->showed_multi_packet_warning = 1; } switch (ist->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: ret = decode_audio (ist, &avpkt, &got_output); break; case AVMEDIA_TYPE_VIDEO: ret = decode_video (ist, &avpkt, &got_output); if (avpkt.duration) { duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q); } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) { int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame; duration = ((int64_t)AV_TIME_BASE * ist->st->codec->time_base.num * ticks) / ist->st->codec->time_base.den; } else duration = 0; if(ist->dts != AV_NOPTS_VALUE && duration) { ist->next_dts += duration; }else ist->next_dts = AV_NOPTS_VALUE; if (got_output) ist->next_pts += duration; //FIXME the duration is not correct in some cases break; case AVMEDIA_TYPE_SUBTITLE: ret = transcode_subtitles(ist, &avpkt, &got_output); break; default: return -1; } if (ret < 0) return ret; avpkt.dts= avpkt.pts= AV_NOPTS_VALUE; // touch data and size only if not EOF if (pkt) { if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO) ret = avpkt.size; avpkt.data += ret; avpkt.size -= ret; } if (!got_output) { continue; } } /* handle stream copy */ if (!ist->decoding_needed) { ist->dts = ist->next_dts; switch (ist->st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) / ist->st->codec->sample_rate; break; case AVMEDIA_TYPE_VIDEO: if (ist->framerate.num) { // TODO: Remove work-around for c99-to-c89 issue 7 AVRational time_base_q = AV_TIME_BASE_Q; int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate)); ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q); } else if (pkt->duration) { ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q); } else if(ist->st->codec->time_base.num != 0) { int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame; ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->time_base.num * ticks) / ist->st->codec->time_base.den; } break; } ist->pts = ist->dts; ist->next_pts = ist->next_dts; } for (i = 0; pkt && i < nb_output_streams; i++) { OutputStream *ost = output_streams[i]; if (!check_output_constraints(ist, ost) || ost->encoding_needed) continue; do_streamcopy(ist, ost, pkt); } return 0; } static void print_sdp(void) { char sdp[16384]; int i; AVFormatContext **avc = av_malloc(sizeof(*avc) * nb_output_files); if (!avc) exit_program(1); for (i = 0; i < nb_output_files; i++) avc[i] = output_files[i]->ctx; av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp)); printf("SDP:\n%s\n", sdp); fflush(stdout); av_freep(&avc); } static int init_input_stream(int ist_index, char *error, int error_len) { int ret; InputStream *ist = input_streams[ist_index]; if (ist->decoding_needed) { AVCodec *codec = ist->dec; if (!codec) { snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d", avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index); return AVERROR(EINVAL); } av_opt_set_int(ist->st->codec, "refcounted_frames", 1, 0); if (!av_dict_get(ist->opts, "threads", NULL, 0)) av_dict_set(&ist->opts, "threads", "auto", 0); if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) { char errbuf[128]; if (ret == AVERROR_EXPERIMENTAL) abort_codec_experimental(codec, 0); av_strerror(ret, errbuf, sizeof(errbuf)); snprintf(error, error_len, "Error while opening decoder for input stream " "#%d:%d : %s", ist->file_index, ist->st->index, errbuf); return ret; } assert_avoptions(ist->opts); } ist->next_pts = AV_NOPTS_VALUE; ist->next_dts = AV_NOPTS_VALUE; ist->is_start = 1; return 0; } static InputStream *get_input_stream(OutputStream *ost) { if (ost->source_index >= 0) return input_streams[ost->source_index]; return NULL; } static int compare_int64(const void *a, const void *b) { int64_t va = *(int64_t *)a, vb = *(int64_t *)b; return va < vb ? -1 : va > vb ? +1 : 0; } static void parse_forced_key_frames(char *kf, OutputStream *ost, AVCodecContext *avctx) { char *p; int n = 1, i, size, index = 0; int64_t t, *pts; for (p = kf; *p; p++) if (*p == ',') n++; size = n; pts = av_malloc(sizeof(*pts) * size); if (!pts) { av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n"); exit_program(1); } p = kf; for (i = 0; i < n; i++) { char *next = strchr(p, ','); if (next) *next++ = 0; if (!memcmp(p, "chapters", 8)) { AVFormatContext *avf = output_files[ost->file_index]->ctx; int j; if (avf->nb_chapters > INT_MAX - size || !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1, sizeof(*pts)))) { av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n"); exit_program(1); } t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0; t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base); for (j = 0; j < avf->nb_chapters; j++) { AVChapter *c = avf->chapters[j]; av_assert1(index < size); pts[index++] = av_rescale_q(c->start, c->time_base, avctx->time_base) + t; } } else { t = parse_time_or_die("force_key_frames", p, 1); av_assert1(index < size); pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base); } p = next; } av_assert0(index == size); qsort(pts, size, sizeof(*pts), compare_int64); ost->forced_kf_count = size; ost->forced_kf_pts = pts; } static void report_new_stream(int input_index, AVPacket *pkt) { InputFile *file = input_files[input_index]; AVStream *st = file->ctx->streams[pkt->stream_index]; if (pkt->stream_index < file->nb_streams_warn) return; av_log(file->ctx, AV_LOG_WARNING, "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n", av_get_media_type_string(st->codec->codec_type), input_index, pkt->stream_index, pkt->pos, av_ts2timestr(pkt->dts, &st->time_base)); file->nb_streams_warn = pkt->stream_index + 1; } static int transcode_init(void) { int ret = 0, i, j, k; AVFormatContext *oc; AVCodecContext *codec; OutputStream *ost; InputStream *ist; char error[1024]; int want_sdp = 1; /* init framerate emulation */ for (i = 0; i < nb_input_files; i++) { InputFile *ifile = input_files[i]; if (ifile->rate_emu) for (j = 0; j < ifile->nb_streams; j++) input_streams[j + ifile->ist_index]->start = av_gettime(); } /* output stream init */ for (i = 0; i < nb_output_files; i++) { oc = output_files[i]->ctx; if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) { av_dump_format(oc, i, oc->filename, 1); av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i); return AVERROR(EINVAL); } } /* init complex filtergraphs */ for (i = 0; i < nb_filtergraphs; i++) if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0) return ret; /* for each output stream, we compute the right encoding parameters */ for (i = 0; i < nb_output_streams; i++) { AVCodecContext *icodec = NULL; ost = output_streams[i]; oc = output_files[ost->file_index]->ctx; ist = get_input_stream(ost); if (ost->attachment_filename) continue; codec = ost->st->codec; if (ist) { icodec = ist->st->codec; ost->st->disposition = ist->st->disposition; codec->bits_per_raw_sample = icodec->bits_per_raw_sample; codec->chroma_sample_location = icodec->chroma_sample_location; } if (ost->stream_copy) { AVRational sar; uint64_t extra_size; av_assert0(ist && !ost->filter); extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE; if (extra_size > INT_MAX) { return AVERROR(EINVAL); } /* if stream_copy is selected, no need to decode or encode */ codec->codec_id = icodec->codec_id; codec->codec_type = icodec->codec_type; if (!codec->codec_tag) { unsigned int codec_tag; if (!oc->oformat->codec_tag || av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id || !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag)) codec->codec_tag = icodec->codec_tag; } codec->bit_rate = icodec->bit_rate; codec->rc_max_rate = icodec->rc_max_rate; codec->rc_buffer_size = icodec->rc_buffer_size; codec->field_order = icodec->field_order; codec->extradata = av_mallocz(extra_size); if (!codec->extradata) { return AVERROR(ENOMEM); } memcpy(codec->extradata, icodec->extradata, icodec->extradata_size); codec->extradata_size= icodec->extradata_size; codec->bits_per_coded_sample = icodec->bits_per_coded_sample; codec->time_base = ist->st->time_base; /* * Avi is a special case here because it supports variable fps but * having the fps and timebase differe significantly adds quite some * overhead */ if(!strcmp(oc->oformat->name, "avi")) { if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate) && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base) && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base) && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500 || copy_tb==2){ codec->time_base.num = ist->st->r_frame_rate.den; codec->time_base.den = 2*ist->st->r_frame_rate.num; codec->ticks_per_frame = 2; } else if ( copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500 || copy_tb==0){ codec->time_base = icodec->time_base; codec->time_base.num *= icodec->ticks_per_frame; codec->time_base.den *= 2; codec->ticks_per_frame = 2; } } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS) && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp") && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod") && strcmp(oc->oformat->name, "f4v") ) { if( copy_tb<0 && icodec->time_base.den && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500 || copy_tb==0){ codec->time_base = icodec->time_base; codec->time_base.num *= icodec->ticks_per_frame; } } if ( codec->codec_tag == AV_RL32("tmcd") && icodec->time_base.num < icodec->time_base.den && icodec->time_base.num > 0 && 121LL*icodec->time_base.num > icodec->time_base.den) { codec->time_base = icodec->time_base; } if (ist && !ost->frame_rate.num) ost->frame_rate = ist->framerate; if(ost->frame_rate.num) codec->time_base = av_inv_q(ost->frame_rate); av_reduce(&codec->time_base.num, &codec->time_base.den, codec->time_base.num, codec->time_base.den, INT_MAX); switch (codec->codec_type) { case AVMEDIA_TYPE_AUDIO: if (audio_volume != 256) { av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n"); exit_program(1); } codec->channel_layout = icodec->channel_layout; codec->sample_rate = icodec->sample_rate; codec->channels = icodec->channels; codec->frame_size = icodec->frame_size; codec->audio_service_type = icodec->audio_service_type; codec->block_align = icodec->block_align; if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3) codec->block_align= 0; if(codec->codec_id == AV_CODEC_ID_AC3) codec->block_align= 0; break; case AVMEDIA_TYPE_VIDEO: codec->pix_fmt = icodec->pix_fmt; codec->width = icodec->width; codec->height = icodec->height; codec->has_b_frames = icodec->has_b_frames; if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option sar = av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }); av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio " "with stream copy may produce invalid files\n"); } else if (ist->st->sample_aspect_ratio.num) sar = ist->st->sample_aspect_ratio; else sar = icodec->sample_aspect_ratio; ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar; ost->st->avg_frame_rate = ist->st->avg_frame_rate; break; case AVMEDIA_TYPE_SUBTITLE: codec->width = icodec->width; codec->height = icodec->height; break; case AVMEDIA_TYPE_DATA: case AVMEDIA_TYPE_ATTACHMENT: break; default: abort(); } } else { if (!ost->enc) ost->enc = avcodec_find_encoder(codec->codec_id); if (!ost->enc) { /* should only happen when a default codec is not present. */ snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d", avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index); ret = AVERROR(EINVAL); goto dump_format; } if (ist) ist->decoding_needed++; ost->encoding_needed = 1; if (!ost->filter && (codec->codec_type == AVMEDIA_TYPE_VIDEO || codec->codec_type == AVMEDIA_TYPE_AUDIO)) { FilterGraph *fg; fg = init_simple_filtergraph(ist, ost); if (configure_filtergraph(fg)) { av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n"); exit_program(1); } } if (codec->codec_type == AVMEDIA_TYPE_VIDEO) { if (ost->filter && !ost->frame_rate.num) ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter); if (ist && !ost->frame_rate.num) ost->frame_rate = ist->framerate; if (ist && !ost->frame_rate.num) ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25, 1}; // ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1}; if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) { int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates); ost->frame_rate = ost->enc->supported_framerates[idx]; } } switch (codec->codec_type) { case AVMEDIA_TYPE_AUDIO: codec->sample_fmt = ost->filter->filter->inputs[0]->format; codec->sample_rate = ost->filter->filter->inputs[0]->sample_rate; codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout; codec->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]); codec->time_base = (AVRational){ 1, codec->sample_rate }; break; case AVMEDIA_TYPE_VIDEO: codec->time_base = av_inv_q(ost->frame_rate); if (ost->filter && !(codec->time_base.num && codec->time_base.den)) codec->time_base = ost->filter->filter->inputs[0]->time_base; if ( av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH && (video_sync_method == VSYNC_CFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){ av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n" "Please consider specifying a lower framerate, a different muxer or -vsync 2\n"); } for (j = 0; j < ost->forced_kf_count; j++) ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j], AV_TIME_BASE_Q, codec->time_base); codec->width = ost->filter->filter->inputs[0]->w; codec->height = ost->filter->filter->inputs[0]->h; codec->sample_aspect_ratio = ost->st->sample_aspect_ratio = ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) : ost->filter->filter->inputs[0]->sample_aspect_ratio; if (!strncmp(ost->enc->name, "libx264", 7) && codec->pix_fmt == AV_PIX_FMT_NONE && ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P) av_log(NULL, AV_LOG_WARNING, "No pixel format specified, %s for H.264 encoding chosen.\n" "Use -pix_fmt yuv420p for compatibility with outdated media players.\n", av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format)); if (!strncmp(ost->enc->name, "mpeg2video", 10) && codec->pix_fmt == AV_PIX_FMT_NONE && ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P) av_log(NULL, AV_LOG_WARNING, "No pixel format specified, %s for MPEG-2 encoding chosen.\n" "Use -pix_fmt yuv420p for compatibility with outdated media players.\n", av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format)); codec->pix_fmt = ost->filter->filter->inputs[0]->format; if (!icodec || codec->width != icodec->width || codec->height != icodec->height || codec->pix_fmt != icodec->pix_fmt) { codec->bits_per_raw_sample = frame_bits_per_raw_sample; } if (ost->forced_keyframes) { if (!strncmp(ost->forced_keyframes, "expr:", 5)) { ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5, forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL); if (ret < 0) { av_log(NULL, AV_LOG_ERROR, "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5); return ret; } ost->forced_keyframes_expr_const_values[FKF_N] = 0; ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0; ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN; ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN; } else { parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec); } } break; case AVMEDIA_TYPE_SUBTITLE: codec->time_base = (AVRational){1, 1000}; if (!codec->width) { codec->width = input_streams[ost->source_index]->st->codec->width; codec->height = input_streams[ost->source_index]->st->codec->height; } break; default: abort(); break; } /* two pass mode */ if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) { char logfilename[1024]; FILE *f; snprintf(logfilename, sizeof(logfilename), "%s-%d.log", ost->logfile_prefix ? ost->logfile_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX, i); if (!strcmp(ost->enc->name, "libx264")) { av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE); } else { if (codec->flags & CODEC_FLAG_PASS2) { char *logbuffer; size_t logbuffer_size; if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) { av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n", logfilename); exit_program(1); } codec->stats_in = logbuffer; } if (codec->flags & CODEC_FLAG_PASS1) { f = fopen(logfilename, "wb"); if (!f) { av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n", logfilename, strerror(errno)); exit_program(1); } ost->logfile = f; } } } } } /* open each encoder */ for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; if (ost->encoding_needed) { AVCodec *codec = ost->enc; AVCodecContext *dec = NULL; if ((ist = get_input_stream(ost))) dec = ist->st->codec; if (dec && dec->subtitle_header) { /* ASS code assumes this buffer is null terminated so add extra byte. */ ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1); if (!ost->st->codec->subtitle_header) { ret = AVERROR(ENOMEM); goto dump_format; } memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size); ost->st->codec->subtitle_header_size = dec->subtitle_header_size; } if (!av_dict_get(ost->opts, "threads", NULL, 0)) av_dict_set(&ost->opts, "threads", "auto", 0); if ((ret = avcodec_open2(ost->st->codec, codec, &ost->opts)) < 0) { if (ret == AVERROR_EXPERIMENTAL) abort_codec_experimental(codec, 1); snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height", ost->file_index, ost->index); goto dump_format; } if (ost->enc->type == AVMEDIA_TYPE_AUDIO && !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) av_buffersink_set_frame_size(ost->filter->filter, ost->st->codec->frame_size); assert_avoptions(ost->opts); if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000) av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low." " It takes bits/s as argument, not kbits/s\n"); extra_size += ost->st->codec->extradata_size; if (ost->st->codec->me_threshold) input_streams[ost->source_index]->st->codec->debug |= FF_DEBUG_MV; } else { av_opt_set_dict(ost->st->codec, &ost->opts); } } /* init input streams */ for (i = 0; i < nb_input_streams; i++) if ((ret = init_input_stream(i, error, sizeof(error))) < 0) { for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; avcodec_close(ost->st->codec); } goto dump_format; } /* discard unused programs */ for (i = 0; i < nb_input_files; i++) { InputFile *ifile = input_files[i]; for (j = 0; j < ifile->ctx->nb_programs; j++) { AVProgram *p = ifile->ctx->programs[j]; int discard = AVDISCARD_ALL; for (k = 0; k < p->nb_stream_indexes; k++) if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) { discard = AVDISCARD_DEFAULT; break; } p->discard = discard; } } /* open files and write file headers */ for (i = 0; i < nb_output_files; i++) { oc = output_files[i]->ctx; oc->interrupt_callback = int_cb; if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) { char errbuf[128]; av_strerror(ret, errbuf, sizeof(errbuf)); snprintf(error, sizeof(error), "Could not write header for output file #%d " "(incorrect codec parameters ?): %s", i, errbuf); ret = AVERROR(EINVAL); goto dump_format; } // assert_avoptions(output_files[i]->opts); if (strcmp(oc->oformat->name, "rtp")) { want_sdp = 0; } } dump_format: /* dump the file output parameters - cannot be done before in case of stream copy */ for (i = 0; i < nb_output_files; i++) { av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1); } /* dump the stream mapping */ av_log(NULL, AV_LOG_INFO, "Stream mapping:\n"); for (i = 0; i < nb_input_streams; i++) { ist = input_streams[i]; for (j = 0; j < ist->nb_filters; j++) { if (ist->filters[j]->graph->graph_desc) { av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s", ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?", ist->filters[j]->name); if (nb_filtergraphs > 1) av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index); av_log(NULL, AV_LOG_INFO, "\n"); } } } for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; if (ost->attachment_filename) { /* an attached file */ av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n", ost->attachment_filename, ost->file_index, ost->index); continue; } if (ost->filter && ost->filter->graph->graph_desc) { /* output from a complex graph */ av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name); if (nb_filtergraphs > 1) av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index); av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index, ost->index, ost->enc ? ost->enc->name : "?"); continue; } av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d", input_streams[ost->source_index]->file_index, input_streams[ost->source_index]->st->index, ost->file_index, ost->index); if (ost->sync_ist != input_streams[ost->source_index]) av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]", ost->sync_ist->file_index, ost->sync_ist->st->index); if (ost->stream_copy) av_log(NULL, AV_LOG_INFO, " (copy)"); else av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index]->dec ? input_streams[ost->source_index]->dec->name : "?", ost->enc ? ost->enc->name : "?"); av_log(NULL, AV_LOG_INFO, "\n"); } if (ret) { av_log(NULL, AV_LOG_ERROR, "%s\n", error); return ret; } if (want_sdp) { print_sdp(); } return 0; } /* Return 1 if there remain streams where more output is wanted, 0 otherwise. */ static int need_output(void) { int i; for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = output_streams[i]; OutputFile *of = output_files[ost->file_index]; AVFormatContext *os = output_files[ost->file_index]->ctx; if (ost->finished || (os->pb && avio_tell(os->pb) >= of->limit_filesize)) continue; if (ost->frame_number >= ost->max_frames) { int j; for (j = 0; j < of->ctx->nb_streams; j++) close_output_stream(output_streams[of->ost_index + j]); continue; } return 1; } return 0; } /** * Select the output stream to process. * * @return selected output stream, or NULL if none available */ static OutputStream *choose_output(void) { int i; int64_t opts_min = INT64_MAX; OutputStream *ost_min = NULL; for (i = 0; i < nb_output_streams; i++) { OutputStream *ost = output_streams[i]; int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base, AV_TIME_BASE_Q); if (!ost->unavailable && !ost->finished && opts < opts_min) { opts_min = opts; ost_min = ost; } } return ost_min; } static int check_keyboard_interaction(int64_t cur_time) { int i, ret, key; static int64_t last_time; if (received_nb_signals) return AVERROR_EXIT; /* read_key() returns 0 on EOF */ if(cur_time - last_time >= 100000 && !run_as_daemon){ key = read_key(); last_time = cur_time; }else key = -1; if (key == 'q') return AVERROR_EXIT; if (key == '+') av_log_set_level(av_log_get_level()+10); if (key == '-') av_log_set_level(av_log_get_level()-10); if (key == 's') qp_hist ^= 1; if (key == 'h'){ if (do_hex_dump){ do_hex_dump = do_pkt_dump = 0; } else if(do_pkt_dump){ do_hex_dump = 1; } else do_pkt_dump = 1; av_log_set_level(AV_LOG_DEBUG); } if (key == 'c' || key == 'C'){ char buf[4096], target[64], command[256], arg[256] = {0}; double time; int k, n = 0; fprintf(stderr, "\nEnter command: <target> <time> <command>[ <argument>]\n"); i = 0; while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1) if (k > 0) buf[i++] = k; buf[i] = 0; if (k > 0 && (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) { av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s", target, time, command, arg); for (i = 0; i < nb_filtergraphs; i++) { FilterGraph *fg = filtergraphs[i]; if (fg->graph) { if (time < 0) { ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf), key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0); fprintf(stderr, "Command reply for stream %d: ret:%d res:%s\n", i, ret, buf); } else { ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time); } } } } else { av_log(NULL, AV_LOG_ERROR, "Parse error, at least 3 arguments were expected, " "only %d given in string '%s'\n", n, buf); } } if (key == 'd' || key == 'D'){ int debug=0; if(key == 'D') { debug = input_streams[0]->st->codec->debug<<1; if(!debug) debug = 1; while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash debug += debug; }else if(scanf("%d", &debug)!=1) fprintf(stderr,"error parsing debug value\n"); for(i=0;i<nb_input_streams;i++) { input_streams[i]->st->codec->debug = debug; } for(i=0;i<nb_output_streams;i++) { OutputStream *ost = output_streams[i]; ost->st->codec->debug = debug; } if(debug) av_log_set_level(AV_LOG_DEBUG); fprintf(stderr,"debug=%d\n", debug); } if (key == '?'){ fprintf(stderr, "key function\n" "? show this help\n" "+ increase verbosity\n" "- decrease verbosity\n" "c Send command to filtergraph\n" "D cycle through available debug modes\n" "h dump packets/hex press to cycle through the 3 states\n" "q quit\n" "s Show QP histogram\n" ); } return 0; } #if HAVE_PTHREADS static void *input_thread(void *arg) { InputFile *f = arg; int ret = 0; while (!transcoding_finished && ret >= 0) { AVPacket pkt; ret = av_read_frame(f->ctx, &pkt); if (ret == AVERROR(EAGAIN)) { av_usleep(10000); ret = 0; continue; } else if (ret < 0) break; pthread_mutex_lock(&f->fifo_lock); while (!av_fifo_space(f->fifo)) pthread_cond_wait(&f->fifo_cond, &f->fifo_lock); av_dup_packet(&pkt); av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL); pthread_mutex_unlock(&f->fifo_lock); } f->finished = 1; return NULL; } static void free_input_threads(void) { int i; if (nb_input_files == 1) return; transcoding_finished = 1; for (i = 0; i < nb_input_files; i++) { InputFile *f = input_files[i]; AVPacket pkt; if (!f->fifo || f->joined) continue; pthread_mutex_lock(&f->fifo_lock); while (av_fifo_size(f->fifo)) { av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL); av_free_packet(&pkt); } pthread_cond_signal(&f->fifo_cond); pthread_mutex_unlock(&f->fifo_lock); pthread_join(f->thread, NULL); f->joined = 1; while (av_fifo_size(f->fifo)) { av_fifo_generic_read(f->fifo, &pkt, sizeof(pkt), NULL); av_free_packet(&pkt); } av_fifo_free(f->fifo); } } static int init_input_threads(void) { int i, ret; if (nb_input_files == 1) return 0; for (i = 0; i < nb_input_files; i++) { InputFile *f = input_files[i]; if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket)))) return AVERROR(ENOMEM); pthread_mutex_init(&f->fifo_lock, NULL); pthread_cond_init (&f->fifo_cond, NULL); if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) return AVERROR(ret); } return 0; } static int get_input_packet_mt(InputFile *f, AVPacket *pkt) { int ret = 0; pthread_mutex_lock(&f->fifo_lock); if (av_fifo_size(f->fifo)) { av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL); pthread_cond_signal(&f->fifo_cond); } else { if (f->finished) ret = AVERROR_EOF; else ret = AVERROR(EAGAIN); } pthread_mutex_unlock(&f->fifo_lock); return ret; } #endif static int get_input_packet(InputFile *f, AVPacket *pkt) { if (f->rate_emu) { int i; for (i = 0; i < f->nb_streams; i++) { InputStream *ist = input_streams[f->ist_index + i]; int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE); int64_t now = av_gettime() - ist->start; if (pts > now) return AVERROR(EAGAIN); } } #if HAVE_PTHREADS if (nb_input_files > 1) return get_input_packet_mt(f, pkt); #endif return av_read_frame(f->ctx, pkt); } static int got_eagain(void) { int i; for (i = 0; i < nb_output_streams; i++) if (output_streams[i]->unavailable) return 1; return 0; } static void reset_eagain(void) { int i; for (i = 0; i < nb_input_files; i++) input_files[i]->eagain = 0; for (i = 0; i < nb_output_streams; i++) output_streams[i]->unavailable = 0; } /* * Return * - 0 -- one packet was read and processed * - AVERROR(EAGAIN) -- no packets were available for selected file, * this function should be called again * - AVERROR_EOF -- this function should not be called again */ static int process_input(int file_index) { InputFile *ifile = input_files[file_index]; AVFormatContext *is; InputStream *ist; AVPacket pkt; int ret, i, j; is = ifile->ctx; ret = get_input_packet(ifile, &pkt); if (ret == AVERROR(EAGAIN)) { ifile->eagain = 1; return ret; } if (ret < 0) { if (ret != AVERROR_EOF) { print_error(is->filename, ret); if (exit_on_error) exit_program(1); } ifile->eof_reached = 1; for (i = 0; i < ifile->nb_streams; i++) { ist = input_streams[ifile->ist_index + i]; if (ist->decoding_needed) output_packet(ist, NULL); /* mark all outputs that don't go through lavfi as finished */ for (j = 0; j < nb_output_streams; j++) { OutputStream *ost = output_streams[j]; if (ost->source_index == ifile->ist_index + i && (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE)) close_output_stream(ost); } } return AVERROR(EAGAIN); } reset_eagain(); if (do_pkt_dump) { av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump, is->streams[pkt.stream_index]); } /* the following test is needed in case new streams appear dynamically in stream : we ignore them */ if (pkt.stream_index >= ifile->nb_streams) { report_new_stream(file_index, &pkt); goto discard_packet; } ist = input_streams[ifile->ist_index + pkt.stream_index]; if (ist->discard) goto discard_packet; if (debug_ts) { av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s " "next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n", ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type), av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q), av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q), av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base), av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base), av_ts2str(input_files[ist->file_index]->ts_offset), av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q)); } if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){ int64_t stime, stime2; // Correcting starttime based on the enabled streams // FIXME this ideally should be done before the first use of starttime but we do not know which are the enabled streams at that point. // so we instead do it here as part of discontinuity handling if ( ist->next_dts == AV_NOPTS_VALUE && ifile->ts_offset == -is->start_time && (is->iformat->flags & AVFMT_TS_DISCONT)) { int64_t new_start_time = INT64_MAX; for (i=0; i<is->nb_streams; i++) { AVStream *st = is->streams[i]; if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE) continue; new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q)); } if (new_start_time > is->start_time) { av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time); ifile->ts_offset = -new_start_time; } } stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base); stime2= stime + (1ULL<<ist->st->pts_wrap_bits); ist->wrap_correction_done = 1; if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) { pkt.dts -= 1ULL<<ist->st->pts_wrap_bits; ist->wrap_correction_done = 0; } if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) { pkt.pts -= 1ULL<<ist->st->pts_wrap_bits; ist->wrap_correction_done = 0; } } if (pkt.dts != AV_NOPTS_VALUE) pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base); if (pkt.pts != AV_NOPTS_VALUE) pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base); if (pkt.pts != AV_NOPTS_VALUE) pkt.pts *= ist->ts_scale; if (pkt.dts != AV_NOPTS_VALUE) pkt.dts *= ist->ts_scale; if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) { int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q); int64_t delta = pkt_dts - ifile->last_ts; if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE || (delta > 1LL*dts_delta_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){ ifile->ts_offset -= delta; av_log(NULL, AV_LOG_DEBUG, "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, ifile->ts_offset); pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); if (pkt.pts != AV_NOPTS_VALUE) pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); } } if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) { int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q); int64_t delta = pkt_dts - ist->next_dts; if (is->iformat->flags & AVFMT_TS_DISCONT) { if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE || (delta > 1LL*dts_delta_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) || pkt_dts+1<ist->pts){ ifile->ts_offset -= delta; av_log(NULL, AV_LOG_DEBUG, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", delta, ifile->ts_offset); pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); if (pkt.pts != AV_NOPTS_VALUE) pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); } } else { if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE || (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ) { av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index); pkt.dts = AV_NOPTS_VALUE; } if (pkt.pts != AV_NOPTS_VALUE){ int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q); delta = pkt_pts - ist->next_dts; if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE || (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ) { av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index); pkt.pts = AV_NOPTS_VALUE; } } } } if (pkt.dts != AV_NOPTS_VALUE) ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q); if (debug_ts) { av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n", ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type), av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base), av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base), av_ts2str(input_files[ist->file_index]->ts_offset), av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q)); } sub2video_heartbeat(ist, pkt.pts); ret = output_packet(ist, &pkt); if (ret < 0) { char buf[128]; av_strerror(ret, buf, sizeof(buf)); av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n", ist->file_index, ist->st->index, buf); if (exit_on_error) exit_program(1); } discard_packet: av_free_packet(&pkt); return 0; } /** * Perform a step of transcoding for the specified filter graph. * * @param[in] graph filter graph to consider * @param[out] best_ist input stream where a frame would allow to continue * @return 0 for success, <0 for error */ static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist) { int i, ret; int nb_requests, nb_requests_max = 0; InputFilter *ifilter; InputStream *ist; *best_ist = NULL; ret = avfilter_graph_request_oldest(graph->graph); if (ret >= 0) return reap_filters(); if (ret == AVERROR_EOF) { ret = reap_filters(); for (i = 0; i < graph->nb_outputs; i++) close_output_stream(graph->outputs[i]->ost); return ret; } if (ret != AVERROR(EAGAIN)) return ret; for (i = 0; i < graph->nb_inputs; i++) { ifilter = graph->inputs[i]; ist = ifilter->ist; if (input_files[ist->file_index]->eagain || input_files[ist->file_index]->eof_reached) continue; nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter); if (nb_requests > nb_requests_max) { nb_requests_max = nb_requests; *best_ist = ist; } } if (!*best_ist) for (i = 0; i < graph->nb_outputs; i++) graph->outputs[i]->ost->unavailable = 1; return 0; } /** * Run a single step of transcoding. * * @return 0 for success, <0 for error */ static int transcode_step(void) { OutputStream *ost; InputStream *ist; int ret; ost = choose_output(); if (!ost) { if (got_eagain()) { reset_eagain(); av_usleep(10000); return 0; } av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n"); return AVERROR_EOF; } if (ost->filter) { if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0) return ret; if (!ist) return 0; } else { av_assert0(ost->source_index >= 0); ist = input_streams[ost->source_index]; } ret = process_input(ist->file_index); if (ret == AVERROR(EAGAIN)) { if (input_files[ist->file_index]->eagain) ost->unavailable = 1; return 0; } if (ret < 0) return ret == AVERROR_EOF ? 0 : ret; return reap_filters(); } /* * The following code is the main loop of the file converter */ static int transcode(void) { int ret, i; AVFormatContext *os; OutputStream *ost; InputStream *ist; int64_t timer_start; ret = transcode_init(); if (ret < 0) goto fail; if (stdin_interaction) { av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n"); } timer_start = av_gettime(); #if HAVE_PTHREADS if ((ret = init_input_threads()) < 0) goto fail; #endif while (!received_sigterm) { int64_t cur_time= av_gettime(); /* if 'q' pressed, exits */ if (stdin_interaction) if (check_keyboard_interaction(cur_time) < 0) break; /* check if there's any stream where output is still needed */ if (!need_output()) { av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n"); break; } ret = transcode_step(); if (ret < 0) { if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) continue; av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n"); break; } /* dump report by using the output first video and audio streams */ print_report(0, timer_start, cur_time); } #if HAVE_PTHREADS free_input_threads(); #endif /* at the end of stream, we must flush the decoder buffers */ for (i = 0; i < nb_input_streams; i++) { ist = input_streams[i]; if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) { output_packet(ist, NULL); } } flush_encoders(); term_exit(); /* write the trailer if needed and close file */ for (i = 0; i < nb_output_files; i++) { os = output_files[i]->ctx; av_write_trailer(os); } /* dump report by using the first video and audio streams */ print_report(1, timer_start, av_gettime()); /* close each encoder */ for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; if (ost->encoding_needed) { av_freep(&ost->st->codec->stats_in); avcodec_close(ost->st->codec); } } /* close each decoder */ for (i = 0; i < nb_input_streams; i++) { ist = input_streams[i]; if (ist->decoding_needed) { avcodec_close(ist->st->codec); } } /* finished ! */ ret = 0; fail: #if HAVE_PTHREADS free_input_threads(); #endif if (output_streams) { for (i = 0; i < nb_output_streams; i++) { ost = output_streams[i]; if (ost) { if (ost->stream_copy) av_freep(&ost->st->codec->extradata); if (ost->logfile) { fclose(ost->logfile); ost->logfile = NULL; } av_freep(&ost->st->codec->subtitle_header); av_freep(&ost->forced_kf_pts); av_freep(&ost->apad); av_dict_free(&ost->opts); av_dict_free(&ost->swr_opts); av_dict_free(&ost->resample_opts); } } } return ret; } static int64_t getutime(void) { #if HAVE_GETRUSAGE struct rusage rusage; getrusage(RUSAGE_SELF, &rusage); return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec; #elif HAVE_GETPROCESSTIMES HANDLE proc; FILETIME c, e, k, u; proc = GetCurrentProcess(); GetProcessTimes(proc, &c, &e, &k, &u); return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10; #else return av_gettime(); #endif } static int64_t getmaxrss(void) { #if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS struct rusage rusage; getrusage(RUSAGE_SELF, &rusage); return (int64_t)rusage.ru_maxrss * 1024; #elif HAVE_GETPROCESSMEMORYINFO HANDLE proc; PROCESS_MEMORY_COUNTERS memcounters; proc = GetCurrentProcess(); memcounters.cb = sizeof(memcounters); GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters)); return memcounters.PeakPagefileUsage; #else return 0; #endif } static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl) { } int main(int argc, char **argv) { int ret; int64_t ti; register_exit(ffmpeg_cleanup); setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */ av_log_set_flags(AV_LOG_SKIP_REPEATED); parse_loglevel(argc, argv, options); if(argc>1 && !strcmp(argv[1], "-d")){ run_as_daemon=1; av_log_set_callback(log_callback_null); argc--; argv++; } avcodec_register_all(); #if CONFIG_AVDEVICE avdevice_register_all(); #endif avfilter_register_all(); av_register_all(); avformat_network_init(); show_banner(argc, argv, options); term_init(); /* parse options and open all input/output files */ ret = ffmpeg_parse_options(argc, argv); if (ret < 0) exit_program(1); if (nb_output_files <= 0 && nb_input_files == 0) { show_usage(); av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name); exit_program(1); } /* file converter / grab */ if (nb_output_files <= 0) { av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n"); exit_program(1); } // if (nb_input_files == 0) { // av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n"); // exit_program(1); // } current_time = ti = getutime(); if (transcode() < 0) exit_program(1); ti = getutime() - ti; if (do_benchmark) { printf("bench: utime=%0.3fs\n", ti / 1000000.0); } av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n", decode_error_stat[0], decode_error_stat[1]); if (2*decode_error_stat[0] < decode_error_stat[1]) exit_program(254); exit_program(received_nb_signals ? 255 : 0); return 0; }