/* * FFmpeg main * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * * This library 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 of the License, or (at your option) any later version. * * This library 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 this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #define HAVE_AV_CONFIG_H #include "avformat.h" #include "tick.h" #ifndef CONFIG_WIN32 #include <unistd.h> #include <fcntl.h> #include <sys/ioctl.h> #include <sys/time.h> #include <termios.h> #include <sys/resource.h> #endif #ifdef __BEOS__ /* for snooze() */ #include <OS.h> #endif #include <time.h> #include <ctype.h> #define MAXINT64 INT64_C(0x7fffffffffffffff) typedef struct { const char *name; int flags; #define HAS_ARG 0x0001 #define OPT_BOOL 0x0002 #define OPT_EXPERT 0x0004 #define OPT_STRING 0x0008 union { void (*func_arg)(); int *int_arg; char **str_arg; } u; const char *help; const char *argname; } OptionDef; /* select an input stream for an output stream */ typedef struct AVStreamMap { int file_index; int stream_index; } AVStreamMap; extern const OptionDef options[]; void show_help(void); #define MAX_FILES 20 static AVFormatContext *input_files[MAX_FILES]; static int nb_input_files = 0; static AVFormatContext *output_files[MAX_FILES]; static int nb_output_files = 0; static AVStreamMap stream_maps[MAX_FILES]; static int nb_stream_maps; static AVInputFormat *file_iformat; static AVOutputFormat *file_oformat; static int frame_width = 160; static int frame_height = 128; static int frame_topBand = 0; static int frame_bottomBand = 0; static int frame_leftBand = 0; static int frame_rightBand = 0; static int frame_rate = 25 * FRAME_RATE_BASE; static int video_bit_rate = 200*1000; static int video_bit_rate_tolerance = 4000*1000; static int video_qscale = 0; static int video_qmin = 2; static int video_qmax = 31; static int video_qdiff = 3; static float video_qblur = 0.5; static float video_qcomp = 0.5; static float video_rc_qsquish=1.0; static float video_rc_qmod_amp=0; static int video_rc_qmod_freq=0; static char *video_rc_override_string=NULL; static char *video_rc_eq="tex^qComp"; static int video_rc_buffer_size=0; static float video_rc_buffer_aggressivity=1.0; static int video_rc_max_rate=0; static int video_rc_min_rate=0; static float video_rc_initial_cplx=0; static float video_b_qfactor = 1.25; static float video_b_qoffset = 1.25; static float video_i_qfactor = 0.8; static float video_i_qoffset = 0.0; static int me_method = 0; static int video_disable = 0; static int video_codec_id = CODEC_ID_NONE; static int same_quality = 0; static int b_frames = 0; static int use_hq = 0; static int use_4mv = 0; static int do_deinterlace = 0; static int workaround_bugs = 0; static int dct_algo = 0; static int gop_size = 12; static int intra_only = 0; static int audio_sample_rate = 44100; static int audio_bit_rate = 64000; static int audio_disable = 0; static int audio_channels = 1; static int audio_codec_id = CODEC_ID_NONE; static INT64 recording_time = 0; static int file_overwrite = 0; static char *str_title = NULL; static char *str_author = NULL; static char *str_copyright = NULL; static char *str_comment = NULL; static int do_benchmark = 0; static int do_hex_dump = 0; static int do_play = 0; static int do_psnr = 0; static int do_vstats = 0; static int mpeg_vcd = 0; #ifndef CONFIG_AUDIO_OSS const char *audio_device = "none"; #endif #ifndef CONFIG_VIDEO4LINUX const char *v4l_device = "none"; #endif typedef struct AVOutputStream { int file_index; /* file index */ int index; /* stream index in the output file */ int source_index; /* AVInputStream index */ AVStream *st; /* stream in the output file */ int encoding_needed; /* true if encoding needed for this stream */ /* video only */ AVPicture pict_tmp; /* temporary image for resizing */ int video_resample; ImgReSampleContext *img_resample_ctx; /* for image resampling */ /* audio only */ int audio_resample; ReSampleContext *resample; /* for audio resampling */ FifoBuffer fifo; /* for compression: one audio fifo per codec */ } AVOutputStream; typedef struct AVInputStream { int file_index; int index; AVStream *st; int discard; /* true if stream data should be discarded */ int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */ Ticker pts_ticker; /* Ticker for PTS calculation */ int ticker_inited; /* to signal if the ticker was initialized */ INT64 pts; /* current pts */ int pts_increment; /* expected pts increment for next packet */ int frame_number; /* current frame */ INT64 sample_index; /* current sample */ } AVInputStream; typedef struct AVInputFile { int eof_reached; /* true if eof reached */ int ist_index; /* index of first stream in ist_table */ int buffer_size; /* current total buffer size */ int buffer_size_max; /* buffer size at which we consider we can stop buffering */ int nb_streams; /* nb streams we are aware of */ } AVInputFile; #ifndef CONFIG_WIN32 /* init terminal so that we can grab keys */ static struct termios oldtty; static void term_exit(void) { tcsetattr (0, TCSANOW, &oldtty); } static void term_init(void) { struct termios tty; tcgetattr (0, &tty); oldtty = tty; 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); atexit(term_exit); } /* read a key without blocking */ static int read_key(void) { struct timeval tv; int n; unsigned char ch; 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; } return -1; } #else /* no interactive support */ static void term_exit(void) { } static void term_init(void) { } static int read_key(void) { return 0; } #endif int read_ffserver_streams(AVFormatContext *s, const char *filename) { int i, err; AVFormatContext *ic; err = av_open_input_file(&ic, filename, NULL, FFM_PACKET_SIZE, NULL); if (err < 0) return err; /* copy stream format */ s->nb_streams = ic->nb_streams; for(i=0;i<ic->nb_streams;i++) { AVStream *st; st = av_mallocz(sizeof(AVFormatContext)); memcpy(st, ic->streams[i], sizeof(AVStream)); s->streams[i] = st; } av_close_input_file(ic); return 0; } #define MAX_AUDIO_PACKET_SIZE 16384 static void do_audio_out(AVFormatContext *s, AVOutputStream *ost, AVInputStream *ist, unsigned char *buf, int size) { UINT8 *buftmp; UINT8 audio_buf[2*MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */ UINT8 audio_out[MAX_AUDIO_PACKET_SIZE]; /* XXX: allocate it */ int size_out, frame_bytes, ret; AVCodecContext *enc; enc = &ost->st->codec; if (ost->audio_resample) { buftmp = audio_buf; size_out = audio_resample(ost->resample, (short *)buftmp, (short *)buf, size / (ist->st->codec.channels * 2)); size_out = size_out * enc->channels * 2; } else { buftmp = buf; size_out = size; } /* now encode as many frames as possible */ if (enc->frame_size > 1) { /* output resampled raw samples */ fifo_write(&ost->fifo, buftmp, size_out, &ost->fifo.wptr); frame_bytes = enc->frame_size * 2 * enc->channels; while (fifo_read(&ost->fifo, audio_buf, frame_bytes, &ost->fifo.rptr) == 0) { ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out), (short *)audio_buf); s->oformat->write_packet(s, ost->index, audio_out, ret, 0); } } else { /* output a pcm frame */ /* XXX: change encoding codec API to avoid this ? */ switch(enc->codec->id) { case CODEC_ID_PCM_S16LE: case CODEC_ID_PCM_S16BE: case CODEC_ID_PCM_U16LE: case CODEC_ID_PCM_U16BE: break; default: size_out = size_out >> 1; break; } ret = avcodec_encode_audio(enc, audio_out, size_out, (short *)buftmp); s->oformat->write_packet(s, ost->index, audio_out, ret, 0); } } /* write a picture to a raw mux */ static void write_picture(AVFormatContext *s, int index, AVPicture *picture, int pix_fmt, int w, int h) { UINT8 *buf, *src, *dest; int size, j, i; /* XXX: not efficient, should add test if we can take directly the AVPicture */ switch(pix_fmt) { case PIX_FMT_YUV420P: size = avpicture_get_size(pix_fmt, w, h); buf = av_malloc(size); if (!buf) return; dest = buf; for(i=0;i<3;i++) { if (i == 1) { w >>= 1; h >>= 1; } src = picture->data[i]; for(j=0;j<h;j++) { memcpy(dest, src, w); dest += w; src += picture->linesize[i]; } } break; case PIX_FMT_YUV422P: size = (w * h) * 2; buf = av_malloc(size); if (!buf) return; dest = buf; for(i=0;i<3;i++) { if (i == 1) { w >>= 1; } src = picture->data[i]; for(j=0;j<h;j++) { memcpy(dest, src, w); dest += w; src += picture->linesize[i]; } } break; case PIX_FMT_YUV444P: size = (w * h) * 3; buf = av_malloc(size); if (!buf) return; dest = buf; for(i=0;i<3;i++) { src = picture->data[i]; for(j=0;j<h;j++) { memcpy(dest, src, w); dest += w; src += picture->linesize[i]; } } break; case PIX_FMT_YUV422: size = (w * h) * 2; buf = av_malloc(size); if (!buf) return; dest = buf; src = picture->data[0]; for(j=0;j<h;j++) { memcpy(dest, src, w * 2); dest += w * 2; src += picture->linesize[0]; } break; case PIX_FMT_RGB24: case PIX_FMT_BGR24: size = (w * h) * 3; buf = av_malloc(size); if (!buf) return; dest = buf; src = picture->data[0]; for(j=0;j<h;j++) { memcpy(dest, src, w * 3); dest += w * 3; src += picture->linesize[0]; } break; default: return; } s->oformat->write_packet(s, index, buf, size, 0); av_free(buf); } static void do_video_out(AVFormatContext *s, AVOutputStream *ost, AVInputStream *ist, AVPicture *picture1, int *frame_size) { int n1, n2, nb, i, ret, frame_number, dec_frame_rate; AVPicture *picture, *picture2, *pict; AVPicture picture_tmp1, picture_tmp2; static UINT8 *video_buffer; UINT8 *buf = NULL, *buf1 = NULL; AVCodecContext *enc, *dec; #define VIDEO_BUFFER_SIZE (1024*1024) enc = &ost->st->codec; dec = &ist->st->codec; frame_number = ist->frame_number; dec_frame_rate = ist->st->r_frame_rate; // fprintf(stderr, "\n%d", dec_frame_rate); /* first drop frame if needed */ n1 = ((INT64)frame_number * enc->frame_rate) / dec_frame_rate; n2 = (((INT64)frame_number + 1) * enc->frame_rate) / dec_frame_rate; nb = n2 - n1; if (nb <= 0) return; if (!video_buffer) video_buffer= av_malloc(VIDEO_BUFFER_SIZE); if(!video_buffer) return; /* deinterlace : must be done before any resize */ if (do_deinterlace) { int size; /* create temporary picture */ size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height); buf1 = av_malloc(size); if (!buf1) return; picture2 = &picture_tmp2; avpicture_fill(picture2, buf1, dec->pix_fmt, dec->width, dec->height); if (avpicture_deinterlace(picture2, picture1, dec->pix_fmt, dec->width, dec->height) < 0) { /* if error, do not deinterlace */ av_free(buf1); buf1 = NULL; picture2 = picture1; } } else { picture2 = picture1; } /* convert pixel format if needed */ if (enc->pix_fmt != dec->pix_fmt) { int size; /* create temporary picture */ size = avpicture_get_size(enc->pix_fmt, dec->width, dec->height); buf = av_malloc(size); if (!buf) return; pict = &picture_tmp1; avpicture_fill(pict, buf, enc->pix_fmt, dec->width, dec->height); if (img_convert(pict, enc->pix_fmt, picture2, dec->pix_fmt, dec->width, dec->height) < 0) { fprintf(stderr, "pixel format conversion not handled\n"); goto the_end; } } else { pict = picture2; } /* XXX: resampling could be done before raw format convertion in some cases to go faster */ /* XXX: only works for YUV420P */ if (ost->video_resample) { picture = &ost->pict_tmp; img_resample(ost->img_resample_ctx, picture, pict); } else { picture = pict; } nb=1; /* duplicates frame if needed */ /* XXX: pb because no interleaving */ for(i=0;i<nb;i++) { if (enc->codec_id != CODEC_ID_RAWVIDEO) { /* handles sameq here. This is not correct because it may not be a global option */ if (same_quality) { enc->quality = dec->quality; } ret = avcodec_encode_video(enc, video_buffer, VIDEO_BUFFER_SIZE, picture); //enc->frame_number = enc->real_pict_num; s->oformat->write_packet(s, ost->index, video_buffer, ret, 0); *frame_size = ret; //fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d", // enc->frame_number-1, enc->real_pict_num, ret, // enc->pict_type); } else { write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height); } } the_end: av_free(buf); av_free(buf1); } static void do_video_stats(AVOutputStream *ost, AVInputStream *ist, int frame_size) { static FILE *fvstats=NULL; static INT64 total_size = 0; char filename[40]; time_t today2; struct tm *today; AVCodecContext *enc; int frame_number; INT64 ti; double ti1, bitrate, avg_bitrate; if (!fvstats) { today2 = time(NULL); today = localtime(&today2); sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min, today->tm_sec); fvstats = fopen(filename,"w"); if (!fvstats) { perror("fopen"); exit(1); } } ti = MAXINT64; enc = &ost->st->codec; total_size += frame_size; if (enc->codec_type == CODEC_TYPE_VIDEO) { frame_number = ist->frame_number; fprintf(fvstats, "frame= %5d q= %2d ", frame_number, enc->quality); if (do_psnr) fprintf(fvstats, "PSNR= %6.2f ", enc->psnr_y); fprintf(fvstats,"f_size= %6d ", frame_size); /* compute min pts value */ if (!ist->discard && ist->pts < ti) { ti = ist->pts; } ti1 = (double)ti / 1000000.0; if (ti1 < 0.01) ti1 = 0.01; bitrate = (double)(frame_size * 8) * enc->frame_rate / FRAME_RATE_BASE / 1000.0; avg_bitrate = (double)(total_size * 8) / ti1 / 1000.0; fprintf(fvstats, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ", (double)total_size / 1024, ti1, bitrate, avg_bitrate); fprintf(fvstats,"type= %s\n", enc->key_frame == 1 ? "I" : "P"); } } /* * The following code is the main loop of the file converter */ static int av_encode(AVFormatContext **output_files, int nb_output_files, AVFormatContext **input_files, int nb_input_files, AVStreamMap *stream_maps, int nb_stream_maps) { int ret, i, j, k, n, nb_istreams = 0, nb_ostreams = 0; AVFormatContext *is, *os; AVCodecContext *codec, *icodec; AVOutputStream *ost, **ost_table = NULL; AVInputStream *ist, **ist_table = NULL; INT64 min_pts, start_time; AVInputFile *file_table; AVFormatContext *stream_no_data; int key; file_table= (AVInputFile*) av_mallocz(nb_input_files * sizeof(AVInputFile)); if (!file_table) goto fail; /* input stream init */ j = 0; for(i=0;i<nb_input_files;i++) { is = input_files[i]; file_table[i].ist_index = j; file_table[i].nb_streams = is->nb_streams; j += is->nb_streams; } nb_istreams = j; ist_table = av_mallocz(nb_istreams * sizeof(AVInputStream *)); if (!ist_table) goto fail; for(i=0;i<nb_istreams;i++) { ist = av_mallocz(sizeof(AVInputStream)); if (!ist) goto fail; ist_table[i] = ist; } j = 0; for(i=0;i<nb_input_files;i++) { is = input_files[i]; for(k=0;k<is->nb_streams;k++) { ist = ist_table[j++]; ist->st = is->streams[k]; ist->file_index = i; ist->index = k; ist->discard = 1; /* the stream is discarded by default (changed later) */ } } /* output stream init */ nb_ostreams = 0; for(i=0;i<nb_output_files;i++) { os = output_files[i]; nb_ostreams += os->nb_streams; if (mpeg_vcd) os->flags |= AVF_FLAG_VCD; } if (nb_stream_maps > 0 && nb_stream_maps != nb_ostreams) { fprintf(stderr, "Number of stream maps must match number of output streams\n"); exit(1); } ost_table = av_mallocz(sizeof(AVOutputStream *) * nb_ostreams); if (!ost_table) goto fail; for(i=0;i<nb_ostreams;i++) { ost = av_mallocz(sizeof(AVOutputStream)); if (!ost) goto fail; ost_table[i] = ost; } n = 0; for(k=0;k<nb_output_files;k++) { os = output_files[k]; for(i=0;i<os->nb_streams;i++) { int found; ost = ost_table[n++]; ost->file_index = k; ost->index = i; ost->st = os->streams[i]; if (nb_stream_maps > 0) { ost->source_index = file_table[stream_maps[n-1].file_index].ist_index + stream_maps[n-1].stream_index; } else { /* get corresponding input stream index : we select the first one with the right type */ found = 0; for(j=0;j<nb_istreams;j++) { ist = ist_table[j]; if (ist->discard && ist->st->codec.codec_type == ost->st->codec.codec_type) { ost->source_index = j; found = 1; } } if (!found) { /* try again and reuse existing stream */ for(j=0;j<nb_istreams;j++) { ist = ist_table[j]; if (ist->st->codec.codec_type == ost->st->codec.codec_type) { ost->source_index = j; found = 1; } } if (!found) { fprintf(stderr, "Could not find input stream matching output stream #%d.%d\n", ost->file_index, ost->index); exit(1); } } } ist = ist_table[ost->source_index]; ist->discard = 0; } } /* dump the stream mapping */ fprintf(stderr, "Stream mapping:\n"); for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; fprintf(stderr, " Stream #%d.%d -> #%d.%d\n", ist_table[ost->source_index]->file_index, ist_table[ost->source_index]->index, ost->file_index, ost->index); } /* for each output stream, we compute the right encoding parameters */ for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; ist = ist_table[ost->source_index]; codec = &ost->st->codec; icodec = &ist->st->codec; switch(codec->codec_type) { case CODEC_TYPE_AUDIO: /* check if same codec with same parameters. If so, no reencoding is needed */ if (codec->codec_id == icodec->codec_id && codec->bit_rate == icodec->bit_rate && codec->sample_rate == icodec->sample_rate && codec->channels == icodec->channels) { /* no reencoding */ /* use the same frame size */ codec->frame_size = icodec->frame_size; //codec->frame_size = 8*icodec->sample_rate*icodec->frame_size/ // icodec->bit_rate; //fprintf(stderr,"\nFrame size: %d", codec->frame_size); } else { if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE)) goto fail; if (codec->channels == icodec->channels && codec->sample_rate == icodec->sample_rate) { ost->audio_resample = 0; } else { if (codec->channels != icodec->channels && icodec->codec_id == CODEC_ID_AC3) { /* Special case for 5:1 AC3 input */ /* and mono or stereo output */ /* Request specific number of channels */ icodec->channels = codec->channels; if (codec->sample_rate == icodec->sample_rate) ost->audio_resample = 0; else { ost->audio_resample = 1; ost->resample = audio_resample_init(codec->channels, icodec->channels, codec->sample_rate, icodec->sample_rate); } /* Request specific number of channels */ icodec->channels = codec->channels; } else { ost->audio_resample = 1; ost->resample = audio_resample_init(codec->channels, icodec->channels, codec->sample_rate, icodec->sample_rate); } } ist->decoding_needed = 1; ost->encoding_needed = 1; } break; case CODEC_TYPE_VIDEO: /* check if same codec with same parameters. If so, no reencoding is needed */ if (codec->codec_id == icodec->codec_id && codec->bit_rate == icodec->bit_rate && codec->frame_rate == icodec->frame_rate && codec->width == icodec->width && codec->height == icodec->height) { /* no reencoding */ } else { if (codec->width == icodec->width && codec->height == icodec->height) { ost->video_resample = 0; } else { UINT8 *buf; ost->video_resample = 1; buf = av_malloc((codec->width * codec->height * 3) / 2); if (!buf) goto fail; ost->pict_tmp.data[0] = buf; ost->pict_tmp.data[1] = ost->pict_tmp.data[0] + (codec->width * codec->height); ost->pict_tmp.data[2] = ost->pict_tmp.data[1] + (codec->width * codec->height) / 4; ost->pict_tmp.linesize[0] = codec->width; ost->pict_tmp.linesize[1] = codec->width / 2; ost->pict_tmp.linesize[2] = codec->width / 2; ost->img_resample_ctx = img_resample_full_init( ost->st->codec.width, ost->st->codec.height, ist->st->codec.width, ist->st->codec.height, frame_topBand, frame_bottomBand, frame_leftBand, frame_rightBand); } ost->encoding_needed = 1; ist->decoding_needed = 1; } break; default: av_abort(); } } /* open each encoder */ for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; if (ost->encoding_needed) { AVCodec *codec; codec = avcodec_find_encoder(ost->st->codec.codec_id); if (!codec) { fprintf(stderr, "Unsupported codec for output stream #%d.%d\n", ost->file_index, ost->index); exit(1); } if (avcodec_open(&ost->st->codec, codec) < 0) { fprintf(stderr, "Error while opening codec for stream #%d.%d - maybe incorrect parameters such as bit_rate, rate, width or height\n", ost->file_index, ost->index); exit(1); } } } /* open each decoder */ for(i=0;i<nb_istreams;i++) { ist = ist_table[i]; if (ist->decoding_needed) { AVCodec *codec; codec = avcodec_find_decoder(ist->st->codec.codec_id); if (!codec) { fprintf(stderr, "Unsupported codec for input stream #%d.%d\n", ist->file_index, ist->index); exit(1); } if (avcodec_open(&ist->st->codec, codec) < 0) { fprintf(stderr, "Error while opening codec for input stream #%d.%d\n", ist->file_index, ist->index); exit(1); } //if (ist->st->codec.codec_type == CODEC_TYPE_VIDEO) // ist->st->codec.flags |= CODEC_FLAG_REPEAT_FIELD; } } /* init pts */ for(i=0;i<nb_istreams;i++) { ist = ist_table[i]; ist->pts = 0; ist->frame_number = 0; } /* compute buffer size max (should use a complete heuristic) */ for(i=0;i<nb_input_files;i++) { file_table[i].buffer_size_max = 2048; } /* open files and write file headers */ for(i=0;i<nb_output_files;i++) { os = output_files[i]; if (av_write_header(os) < 0) { fprintf(stderr, "Could not write header for output file #%d (incorrect codec paramters ?)\n", i); ret = -EINVAL; goto fail; } } #ifndef CONFIG_WIN32 if (!do_play) { fprintf(stderr, "Press [q] to stop encoding\n"); } else { fprintf(stderr, "Press [q] to stop playing\n"); } #endif term_init(); start_time = av_gettime(); min_pts = 0; stream_no_data = 0; key = -1; for(;;) { int file_index, ist_index; AVPacket pkt; UINT8 *ptr; int len; UINT8 *data_buf; int data_size, got_picture; AVPicture picture; short samples[AVCODEC_MAX_AUDIO_FRAME_SIZE / 2]; redo: /* if 'q' pressed, exits */ if (key) { /* read_key() returns 0 on EOF */ key = read_key(); if (key == 'q') break; } /* select the input file with the smallest pts */ file_index = -1; min_pts = MAXINT64; for(i=0;i<nb_istreams;i++) { ist = ist_table[i]; /* For some reason, the pts_increment code breaks q estimation?!? */ if (!ist->discard && !file_table[ist->file_index].eof_reached && ist->pts /* + ist->pts_increment */ < min_pts && input_files[ist->file_index] != stream_no_data) { min_pts = ist->pts /* + ist->pts_increment */; file_index = ist->file_index; } } /* if none, if is finished */ if (file_index < 0) { if (stream_no_data) { #ifndef CONFIG_WIN32 /* no usleep in VisualC ? */ #ifdef __BEOS__ snooze(10 * 1000); /* mmu_man */ /* in microsec */ #elif defined(__CYGWIN__) usleep(10 * 1000); #else struct timespec ts; ts.tv_sec = 0; ts.tv_nsec = 1000 * 1000 * 10; nanosleep(&ts, 0); #endif #endif stream_no_data = 0; continue; } break; } /* finish if recording time exhausted */ if (recording_time > 0 && min_pts >= recording_time) break; /* read a packet from it and output it in the fifo */ is = input_files[file_index]; if (av_read_packet(is, &pkt) < 0) { file_table[file_index].eof_reached = 1; continue; } if (!pkt.size) { stream_no_data = is; } else { stream_no_data = 0; } /* the following test is needed in case new streams appear dynamically in stream : we ignore them */ if (pkt.stream_index >= file_table[file_index].nb_streams) goto discard_packet; ist_index = file_table[file_index].ist_index + pkt.stream_index; ist = ist_table[ist_index]; if (ist->discard) goto discard_packet; if (pkt.flags & PKT_FLAG_DROPPED_FRAME) ist->frame_number++; if (do_hex_dump) { printf("stream #%d, size=%d:\n", pkt.stream_index, pkt.size); av_hex_dump(pkt.data, pkt.size); } // printf("read #%d.%d size=%d\n", ist->file_index, ist->index, pkt.size); len = pkt.size; ptr = pkt.data; while (len > 0) { /* decode the packet if needed */ data_buf = NULL; /* fail safe */ data_size = 0; if (ist->decoding_needed) { switch(ist->st->codec.codec_type) { case CODEC_TYPE_AUDIO: /* XXX: could avoid copy if PCM 16 bits with same endianness as CPU */ ret = avcodec_decode_audio(&ist->st->codec, samples, &data_size, ptr, len); if (ret < 0) goto fail_decode; /* Some bug in mpeg audio decoder gives */ /* data_size < 0, it seems they are overflows */ if (data_size <= 0) { /* no audio frame */ ptr += ret; len -= ret; continue; } data_buf = (UINT8 *)samples; break; case CODEC_TYPE_VIDEO: if (ist->st->codec.codec_id == CODEC_ID_RAWVIDEO) { int size; size = (ist->st->codec.width * ist->st->codec.height); avpicture_fill(&picture, ptr, ist->st->codec.pix_fmt, ist->st->codec.width, ist->st->codec.height); ret = len; } else { data_size = (ist->st->codec.width * ist->st->codec.height * 3) / 2; ret = avcodec_decode_video(&ist->st->codec, &picture, &got_picture, ptr, len); if (ret < 0) { fail_decode: fprintf(stderr, "Error while decoding stream #%d.%d\n", ist->file_index, ist->index); av_free_packet(&pkt); goto redo; } if (!got_picture) { /* no picture yet */ ptr += ret; len -= ret; continue; } } break; default: goto fail_decode; } } else { data_buf = ptr; data_size = len; ret = len; } /* init tickers */ if (!ist->ticker_inited) { switch (ist->st->codec.codec_type) { case CODEC_TYPE_AUDIO: ticker_init(&ist->pts_ticker, (INT64)ist->st->codec.sample_rate, (INT64)(1000000)); ist->ticker_inited = 1; break; case CODEC_TYPE_VIDEO: ticker_init(&ist->pts_ticker, (INT64)ist->st->r_frame_rate, ((INT64)1000000 * FRAME_RATE_BASE)); ist->ticker_inited = 1; break; default: av_abort(); } } /* update pts */ switch(ist->st->codec.codec_type) { case CODEC_TYPE_AUDIO: //ist->pts = (INT64)1000000 * ist->sample_index / ist->st->codec.sample_rate; ist->pts = ticker_abs(&ist->pts_ticker, ist->sample_index); ist->sample_index += data_size / (2 * ist->st->codec.channels); ist->pts_increment = (INT64) (data_size / (2 * ist->st->codec.channels)) * 1000000 / ist->st->codec.sample_rate; break; case CODEC_TYPE_VIDEO: ist->frame_number++; //ist->pts = ((INT64)ist->frame_number * 1000000 * FRAME_RATE_BASE) / // ist->st->codec.frame_rate; ist->pts = ticker_abs(&ist->pts_ticker, ist->frame_number); ist->pts_increment = ((INT64) 1000000 * FRAME_RATE_BASE) / ist->st->codec.frame_rate; break; default: av_abort(); } ptr += ret; len -= ret; /* transcode raw format, encode packets and output them */ for(i=0;i<nb_ostreams;i++) { int frame_size; ost = ost_table[i]; if (ost->source_index == ist_index) { os = output_files[ost->file_index]; if (ost->encoding_needed) { switch(ost->st->codec.codec_type) { case CODEC_TYPE_AUDIO: do_audio_out(os, ost, ist, data_buf, data_size); break; case CODEC_TYPE_VIDEO: do_video_out(os, ost, ist, &picture, &frame_size); if (do_vstats) do_video_stats(ost, ist, frame_size); break; default: av_abort(); } } else { /* no reencoding needed : output the packet directly */ /* force the input stream PTS */ os->oformat->write_packet(os, ost->index, data_buf, data_size, pkt.pts); } } } } discard_packet: av_free_packet(&pkt); /* dump report by using the first video and audio streams */ { char buf[1024]; AVFormatContext *oc; INT64 total_size, ti; AVCodecContext *enc; int frame_number, vid; double bitrate, ti1; static INT64 last_time; if ((min_pts - last_time) >= 500000) { last_time = min_pts; oc = output_files[0]; total_size = url_ftell(&oc->pb); buf[0] = '\0'; ti = MAXINT64; vid = 0; for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; enc = &ost->st->codec; ist = ist_table[ost->source_index]; if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) { frame_number = ist->frame_number; sprintf(buf + strlen(buf), "frame=%5d q=%2d ", frame_number, enc->quality); if (do_psnr) sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y); vid = 1; } /* compute min pts value */ if (!ist->discard && ist->pts < ti) { ti = ist->pts; } } ti1 = (double)ti / 1000000.0; if (ti1 < 0.01) ti1 = 0.01; bitrate = (double)(total_size * 8) / ti1 / 1000.0; sprintf(buf + strlen(buf), "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s", (double)total_size / 1024, ti1, bitrate); fprintf(stderr, "%s \r", buf); fflush(stderr); } } } term_exit(); /* dump report by using the first video and audio streams */ { char buf[1024]; AVFormatContext *oc; INT64 total_size, ti; AVCodecContext *enc; int frame_number, vid; double bitrate, ti1; oc = output_files[0]; total_size = url_ftell(&oc->pb); buf[0] = '\0'; ti = MAXINT64; vid = 0; for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; enc = &ost->st->codec; ist = ist_table[ost->source_index]; if (!vid && enc->codec_type == CODEC_TYPE_VIDEO) { frame_number = ist->frame_number; sprintf(buf + strlen(buf), "frame=%5d q=%2d ", frame_number, enc->quality); if (do_psnr) sprintf(buf + strlen(buf), "PSNR=%6.2f ", enc->psnr_y); vid = 1; } /* compute min pts value */ if (!ist->discard && ist->pts < ti) { ti = ist->pts; } } ti1 = ti / 1000000.0; if (ti1 < 0.01) ti1 = 0.01; bitrate = (double)(total_size * 8) / ti1 / 1000.0; sprintf(buf + strlen(buf), "size=%8.0fkB time=%0.1f bitrate=%6.1fkbits/s", (double)total_size / 1024, ti1, bitrate); fprintf(stderr, "%s \n", buf); } /* close each encoder */ for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; if (ost->encoding_needed) { avcodec_close(&ost->st->codec); } } /* close each decoder */ for(i=0;i<nb_istreams;i++) { ist = ist_table[i]; if (ist->decoding_needed) { avcodec_close(&ist->st->codec); } } /* write the trailer if needed and close file */ for(i=0;i<nb_output_files;i++) { os = output_files[i]; av_write_trailer(os); } /* finished ! */ ret = 0; fail1: av_free(file_table); if (ist_table) { for(i=0;i<nb_istreams;i++) { ist = ist_table[i]; av_free(ist); } av_free(ist_table); } if (ost_table) { for(i=0;i<nb_ostreams;i++) { ost = ost_table[i]; if (ost) { fifo_free(&ost->fifo); /* works even if fifo is not initialized but set to zero */ av_free(ost->pict_tmp.data[0]); if (ost->video_resample) img_resample_close(ost->img_resample_ctx); if (ost->audio_resample) audio_resample_close(ost->resample); av_free(ost); } } av_free(ost_table); } return ret; fail: ret = -ENOMEM; goto fail1; } #if 0 int file_read(const char *filename) { URLContext *h; unsigned char buffer[1024]; int len, i; if (url_open(&h, filename, O_RDONLY) < 0) { printf("could not open '%s'\n", filename); return -1; } for(;;) { len = url_read(h, buffer, sizeof(buffer)); if (len <= 0) break; for(i=0;i<len;i++) putchar(buffer[i]); } url_close(h); return 0; } #endif void show_licence(void) { printf( "ffmpeg version " FFMPEG_VERSION "\n" "Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n" "This library is free software; you can redistribute it and/or\n" "modify it under the terms of the GNU Lesser General Public\n" "License as published by the Free Software Foundation; either\n" "version 2 of the License, or (at your option) any later version.\n" "\n" "This library is distributed in the hope that it will be useful,\n" "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" "Lesser General Public License for more details.\n" "\n" "You should have received a copy of the GNU Lesser General Public\n" "License along with this library; if not, write to the Free Software\n" "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n" ); exit(1); } void opt_format(const char *arg) { file_iformat = av_find_input_format(arg); file_oformat = guess_format(arg, NULL, NULL); if (!file_iformat && !file_oformat) { fprintf(stderr, "Unknown input or output format: %s\n", arg); exit(1); } } void opt_video_bitrate(const char *arg) { video_bit_rate = atoi(arg) * 1000; } void opt_video_bitrate_tolerance(const char *arg) { video_bit_rate_tolerance = atoi(arg) * 1000; } void opt_video_bitrate_max(const char *arg) { video_rc_max_rate = atoi(arg) * 1000; } void opt_video_bitrate_min(const char *arg) { video_rc_min_rate = atoi(arg) * 1000; } void opt_video_rc_eq(char *arg) { video_rc_eq = arg; } void opt_workaround_bugs(const char *arg) { workaround_bugs = atoi(arg); } void opt_dct_algo(const char *arg) { dct_algo = atoi(arg); } void opt_frame_rate(const char *arg) { frame_rate = (int)(strtod(arg, 0) * FRAME_RATE_BASE); } void opt_frame_crop_top(const char *arg) { frame_topBand = atoi(arg); if (frame_topBand < 0) { fprintf(stderr, "Incorrect top crop size\n"); exit(1); } if ((frame_topBand % 2) != 0) { fprintf(stderr, "Top crop size must be a multiple of 2\n"); exit(1); } if ((frame_topBand) >= frame_height){ fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_height -= frame_topBand; } void opt_frame_crop_bottom(const char *arg) { frame_bottomBand = atoi(arg); if (frame_bottomBand < 0) { fprintf(stderr, "Incorrect bottom crop size\n"); exit(1); } if ((frame_bottomBand % 2) != 0) { fprintf(stderr, "Bottom crop size must be a multiple of 2\n"); exit(1); } if ((frame_bottomBand) >= frame_height){ fprintf(stderr, "Vertical crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_height -= frame_bottomBand; } void opt_frame_crop_left(const char *arg) { frame_leftBand = atoi(arg); if (frame_leftBand < 0) { fprintf(stderr, "Incorrect left crop size\n"); exit(1); } if ((frame_leftBand % 2) != 0) { fprintf(stderr, "Left crop size must be a multiple of 2\n"); exit(1); } if ((frame_leftBand) >= frame_width){ fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_width -= frame_leftBand; } void opt_frame_crop_right(const char *arg) { frame_rightBand = atoi(arg); if (frame_rightBand < 0) { fprintf(stderr, "Incorrect right crop size\n"); exit(1); } if ((frame_rightBand % 2) != 0) { fprintf(stderr, "Right crop size must be a multiple of 2\n"); exit(1); } if ((frame_rightBand) >= frame_width){ fprintf(stderr, "Horizontal crop dimensions are outside the range of the original image.\nRemember to crop first and scale second.\n"); exit(1); } frame_width -= frame_rightBand; } void opt_frame_size(const char *arg) { parse_image_size(&frame_width, &frame_height, arg); if (frame_width <= 0 || frame_height <= 0) { fprintf(stderr, "Incorrect frame size\n"); exit(1); } if ((frame_width % 2) != 0 || (frame_height % 2) != 0) { fprintf(stderr, "Frame size must be a multiple of 2\n"); exit(1); } } void opt_gop_size(const char *arg) { gop_size = atoi(arg); } void opt_b_frames(const char *arg) { b_frames = atoi(arg); if (b_frames > FF_MAX_B_FRAMES) { fprintf(stderr, "\nCannot have more than %d B frames, increase FF_MAX_B_FRAMES.\n", FF_MAX_B_FRAMES); exit(1); } else if (b_frames < 1) { fprintf(stderr, "\nNumber of B frames must be higher than 0\n"); exit(1); } } void opt_qscale(const char *arg) { video_qscale = atoi(arg); if (video_qscale < 0 || video_qscale > 31) { fprintf(stderr, "qscale must be >= 1 and <= 31\n"); exit(1); } } void opt_qmin(const char *arg) { video_qmin = atoi(arg); if (video_qmin < 0 || video_qmin > 31) { fprintf(stderr, "qmin must be >= 1 and <= 31\n"); exit(1); } } void opt_qmax(const char *arg) { video_qmax = atoi(arg); if (video_qmax < 0 || video_qmax > 31) { fprintf(stderr, "qmax must be >= 1 and <= 31\n"); exit(1); } } void opt_qdiff(const char *arg) { video_qdiff = atoi(arg); if (video_qdiff < 0 || video_qdiff > 31) { fprintf(stderr, "qdiff must be >= 1 and <= 31\n"); exit(1); } } void opt_qblur(const char *arg) { video_qblur = atof(arg); } void opt_qcomp(const char *arg) { video_qcomp = atof(arg); } void opt_audio_bitrate(const char *arg) { audio_bit_rate = atoi(arg) * 1000; } void opt_audio_rate(const char *arg) { audio_sample_rate = atoi(arg); } void opt_audio_channels(const char *arg) { audio_channels = atoi(arg); } void opt_video_device(const char *arg) { v4l_device = strdup(arg); } void opt_audio_device(const char *arg) { audio_device = strdup(arg); } void opt_audio_codec(const char *arg) { AVCodec *p; p = first_avcodec; while (p) { if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO) break; p = p->next; } if (p == NULL) { fprintf(stderr, "Unknown audio codec '%s'\n", arg); exit(1); } else { audio_codec_id = p->id; } } const char *motion_str[] = { "zero", "full", "log", "phods", "epzs", "x1", NULL, }; void opt_motion_estimation(const char *arg) { const char **p; p = motion_str; for(;;) { if (!*p) { fprintf(stderr, "Unknown motion estimation method '%s'\n", arg); exit(1); } if (!strcmp(*p, arg)) break; p++; } me_method = (p - motion_str) + 1; } void opt_video_codec(const char *arg) { AVCodec *p; p = first_avcodec; while (p) { if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO) break; p = p->next; } if (p == NULL) { fprintf(stderr, "Unknown video codec '%s'\n", arg); exit(1); } else { video_codec_id = p->id; } } void opt_map(const char *arg) { AVStreamMap *m; const char *p; p = arg; m = &stream_maps[nb_stream_maps++]; m->file_index = strtol(arg, (char **)&p, 0); if (*p) p++; m->stream_index = strtol(p, (char **)&p, 0); } void opt_recording_time(const char *arg) { recording_time = parse_date(arg, 1); } void print_error(const char *filename, int err) { switch(err) { case AVERROR_NUMEXPECTED: fprintf(stderr, "%s: Incorrect image filename syntax.\n" "Use '%%d' to specify the image number:\n" " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n" " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n", filename); break; case AVERROR_INVALIDDATA: fprintf(stderr, "%s: Error while parsing header\n", filename); break; case AVERROR_NOFMT: fprintf(stderr, "%s: Unknown format\n", filename); break; default: fprintf(stderr, "%s: Error while opening file\n", filename); break; } } void opt_input_file(const char *filename) { AVFormatContext *ic; AVFormatParameters params, *ap = ¶ms; int err, i, ret, rfps; /* get default parameters from command line */ memset(ap, 0, sizeof(*ap)); ap->sample_rate = audio_sample_rate; ap->channels = audio_channels; ap->frame_rate = frame_rate; ap->width = frame_width; ap->height = frame_height; /* open the input file with generic libav function */ err = av_open_input_file(&ic, filename, file_iformat, 0, ap); if (err < 0) { print_error(filename, err); exit(1); } /* If not enough info to get the stream parameters, we decode the first frames to get it. (used in mpeg case for example) */ ret = av_find_stream_info(ic); if (ret < 0) { fprintf(stderr, "%s: could not find codec parameters\n", filename); exit(1); } /* update the current parameters so that they match the one of the input stream */ for(i=0;i<ic->nb_streams;i++) { AVCodecContext *enc = &ic->streams[i]->codec; switch(enc->codec_type) { case CODEC_TYPE_AUDIO: //fprintf(stderr, "\nInput Audio channels: %d", enc->channels); audio_channels = enc->channels; audio_sample_rate = enc->sample_rate; break; case CODEC_TYPE_VIDEO: frame_height = enc->height; frame_width = enc->width; rfps = ic->streams[i]->r_frame_rate; enc->workaround_bugs = workaround_bugs; if (enc->frame_rate != rfps) { fprintf(stderr,"\nSeems that stream %d comes from film source: %2.2f->%2.2f\n", i, (float)enc->frame_rate / FRAME_RATE_BASE, (float)rfps / FRAME_RATE_BASE); } /* update the current frame rate to match the stream frame rate */ frame_rate = rfps; break; default: av_abort(); } } input_files[nb_input_files] = ic; /* dump the file content */ dump_format(ic, nb_input_files, filename, 0); nb_input_files++; file_iformat = NULL; file_oformat = NULL; } void check_audio_video_inputs(int *has_video_ptr, int *has_audio_ptr) { int has_video, has_audio, i, j; AVFormatContext *ic; has_video = 0; has_audio = 0; for(j=0;j<nb_input_files;j++) { ic = input_files[j]; for(i=0;i<ic->nb_streams;i++) { AVCodecContext *enc = &ic->streams[i]->codec; switch(enc->codec_type) { case CODEC_TYPE_AUDIO: has_audio = 1; break; case CODEC_TYPE_VIDEO: has_video = 1; break; default: av_abort(); } } } *has_video_ptr = has_video; *has_audio_ptr = has_audio; } void opt_output_file(const char *filename) { AVStream *st; AVFormatContext *oc; int use_video, use_audio, nb_streams, input_has_video, input_has_audio; int codec_id; if (!strcmp(filename, "-")) filename = "pipe:"; oc = av_mallocz(sizeof(AVFormatContext)); if (!file_oformat) { file_oformat = guess_format(NULL, filename, NULL); if (!file_oformat) { fprintf(stderr, "Unable for find a suitable output format for '%s'\n", filename); exit(1); } } oc->oformat = file_oformat; if (!strcmp(file_oformat->name, "ffm") && strstart(filename, "http:", NULL)) { /* special case for files sent to ffserver: we get the stream parameters from ffserver */ if (read_ffserver_streams(oc, filename) < 0) { fprintf(stderr, "Could not read stream parameters from '%s'\n", filename); exit(1); } } else { use_video = file_oformat->video_codec != CODEC_ID_NONE; use_audio = file_oformat->audio_codec != CODEC_ID_NONE; /* disable if no corresponding type found and at least one input file */ if (nb_input_files > 0) { check_audio_video_inputs(&input_has_video, &input_has_audio); if (!input_has_video) use_video = 0; if (!input_has_audio) use_audio = 0; } /* manual disable */ if (audio_disable) { use_audio = 0; } if (video_disable) { use_video = 0; } nb_streams = 0; if (use_video) { AVCodecContext *video_enc; st = av_mallocz(sizeof(AVStream)); if (!st) { fprintf(stderr, "Could not alloc stream\n"); exit(1); } video_enc = &st->codec; codec_id = file_oformat->video_codec; if (video_codec_id != CODEC_ID_NONE) codec_id = video_codec_id; video_enc->codec_id = codec_id; video_enc->codec_type = CODEC_TYPE_VIDEO; video_enc->bit_rate = video_bit_rate; video_enc->bit_rate_tolerance = video_bit_rate_tolerance; video_enc->frame_rate = frame_rate; video_enc->width = frame_width; video_enc->height = frame_height; if (!intra_only) video_enc->gop_size = gop_size; else video_enc->gop_size = 0; if (video_qscale || same_quality) { video_enc->flags |= CODEC_FLAG_QSCALE; video_enc->quality = video_qscale; } if (use_hq) { video_enc->flags |= CODEC_FLAG_HQ; } if (use_4mv) { video_enc->flags |= CODEC_FLAG_HQ; video_enc->flags |= CODEC_FLAG_4MV; } if (b_frames) { if (codec_id != CODEC_ID_MPEG4) { fprintf(stderr, "\nB frames encoding only supported by MPEG-4.\n"); exit(1); } video_enc->max_b_frames = b_frames; video_enc->b_frame_strategy = 0; video_enc->b_quant_factor = 2.0; } video_enc->qmin = video_qmin; video_enc->qmax = video_qmax; video_enc->max_qdiff = video_qdiff; video_enc->qblur = video_qblur; video_enc->qcompress = video_qcomp; video_enc->rc_eq = video_rc_eq; video_enc->rc_max_rate = video_rc_max_rate; video_enc->rc_min_rate = video_rc_min_rate; video_enc->rc_buffer_size = video_rc_buffer_size; video_enc->i_quant_factor = video_i_qfactor; video_enc->b_quant_factor = video_b_qfactor; video_enc->i_quant_offset = video_i_qoffset; video_enc->b_quant_offset = video_b_qoffset; video_enc->dct_algo = dct_algo; if (do_psnr) video_enc->get_psnr = 1; else video_enc->get_psnr = 0; video_enc->me_method = me_method; /* XXX: need to find a way to set codec parameters */ if (oc->oformat->flags & AVFMT_RGB24) { video_enc->pix_fmt = PIX_FMT_RGB24; } oc->streams[nb_streams] = st; nb_streams++; } if (use_audio) { AVCodecContext *audio_enc; st = av_mallocz(sizeof(AVStream)); if (!st) { fprintf(stderr, "Could not alloc stream\n"); exit(1); } audio_enc = &st->codec; codec_id = file_oformat->audio_codec; if (audio_codec_id != CODEC_ID_NONE) codec_id = audio_codec_id; audio_enc->codec_id = codec_id; audio_enc->codec_type = CODEC_TYPE_AUDIO; audio_enc->bit_rate = audio_bit_rate; audio_enc->sample_rate = audio_sample_rate; /* For audio codecs other than AC3 we limit */ /* the number of coded channels to stereo */ if (audio_channels > 2 && codec_id != CODEC_ID_AC3) { audio_enc->channels = 2; } else audio_enc->channels = audio_channels; oc->streams[nb_streams] = st; nb_streams++; } oc->nb_streams = nb_streams; if (!nb_streams) { fprintf(stderr, "No audio or video streams available\n"); exit(1); } if (str_title) pstrcpy(oc->title, sizeof(oc->title), str_title); if (str_author) pstrcpy(oc->author, sizeof(oc->author), str_author); if (str_copyright) pstrcpy(oc->copyright, sizeof(oc->copyright), str_copyright); if (str_comment) pstrcpy(oc->comment, sizeof(oc->comment), str_comment); } output_files[nb_output_files] = oc; /* dump the file content */ dump_format(oc, nb_output_files, filename, 1); nb_output_files++; strcpy(oc->filename, filename); /* check filename in case of an image number is expected */ if (oc->oformat->flags & AVFMT_NEEDNUMBER) { if (filename_number_test(oc->filename) < 0) { print_error(oc->filename, AVERROR_NUMEXPECTED); exit(1); } } if (!(oc->oformat->flags & AVFMT_NOFILE)) { /* test if it already exists to avoid loosing precious files */ if (!file_overwrite && (strchr(filename, ':') == NULL || strstart(filename, "file:", NULL))) { if (url_exist(filename)) { int c; printf("File '%s' already exists. Overwrite ? [y/N] ", filename); fflush(stdout); c = getchar(); if (toupper(c) != 'Y') { fprintf(stderr, "Not overwriting - exiting\n"); exit(1); } } } /* open the file */ if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) { fprintf(stderr, "Could not open '%s'\n", filename); exit(1); } } /* reset some options */ file_oformat = NULL; file_iformat = NULL; audio_disable = 0; video_disable = 0; audio_codec_id = CODEC_ID_NONE; video_codec_id = CODEC_ID_NONE; } /* prepare dummy protocols for grab */ void prepare_grab(void) { int has_video, has_audio, i, j; AVFormatContext *oc; AVFormatContext *ic; AVFormatParameters ap1, *ap = &ap1; /* see if audio/video inputs are needed */ has_video = 0; has_audio = 0; memset(ap, 0, sizeof(*ap)); for(j=0;j<nb_output_files;j++) { oc = output_files[j]; for(i=0;i<oc->nb_streams;i++) { AVCodecContext *enc = &oc->streams[i]->codec; switch(enc->codec_type) { case CODEC_TYPE_AUDIO: if (enc->sample_rate > ap->sample_rate) ap->sample_rate = enc->sample_rate; if (enc->channels > ap->channels) ap->channels = enc->channels; has_audio = 1; break; case CODEC_TYPE_VIDEO: if (enc->width > ap->width) ap->width = enc->width; if (enc->height > ap->height) ap->height = enc->height; if (enc->frame_rate > ap->frame_rate) ap->frame_rate = enc->frame_rate; has_video = 1; break; default: av_abort(); } } } if (has_video == 0 && has_audio == 0) { fprintf(stderr, "Output file must have at least one audio or video stream\n"); exit(1); } if (has_video) { AVInputFormat *fmt1; fmt1 = av_find_input_format("video_grab_device"); if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) { fprintf(stderr, "Could not find video grab device\n"); exit(1); } /* by now video grab has one stream */ ic->streams[0]->r_frame_rate = ap->frame_rate; input_files[nb_input_files] = ic; dump_format(ic, nb_input_files, v4l_device, 0); nb_input_files++; } if (has_audio) { AVInputFormat *fmt1; fmt1 = av_find_input_format("audio_device"); if (av_open_input_file(&ic, "", fmt1, 0, ap) < 0) { fprintf(stderr, "Could not find audio grab device\n"); exit(1); } input_files[nb_input_files] = ic; dump_format(ic, nb_input_files, audio_device, 0); nb_input_files++; } } /* open the necessary output devices for playing */ void prepare_play(void) { file_iformat = NULL; file_oformat = guess_format("audio_device", NULL, NULL); if (!file_oformat) { fprintf(stderr, "Could not find audio device\n"); exit(1); } opt_output_file(audio_device); } #ifndef CONFIG_WIN32 INT64 getutime(void) { struct rusage rusage; getrusage(RUSAGE_SELF, &rusage); return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec; } #else INT64 getutime(void) { return av_gettime(); } #endif extern int ffm_nopts; void opt_bitexact(void) { avcodec_set_bit_exact(); /* disable generate of real time pts in ffm (need to be supressed anyway) */ ffm_nopts = 1; } void show_formats(void) { AVInputFormat *ifmt; AVOutputFormat *ofmt; URLProtocol *up; AVCodec *p; const char **pp; printf("File formats:\n"); printf(" Encoding:"); for(ofmt = first_oformat; ofmt != NULL; ofmt = ofmt->next) { printf(" %s", ofmt->name); } printf("\n"); printf(" Decoding:"); for(ifmt = first_iformat; ifmt != NULL; ifmt = ifmt->next) { printf(" %s", ifmt->name); } printf("\n"); printf("Codecs:\n"); printf(" Encoders:"); for(p = first_avcodec; p != NULL; p = p->next) { if (p->encode) printf(" %s", p->name); } printf("\n"); printf(" Decoders:"); for(p = first_avcodec; p != NULL; p = p->next) { if (p->decode) printf(" %s", p->name); } printf("\n"); printf("Supported file protocols:"); for(up = first_protocol; up != NULL; up = up->next) printf(" %s:", up->name); printf("\n"); printf("Frame size abbreviations: sqcif qcif cif 4cif\n"); printf("Motion estimation methods:"); pp = motion_str; while (*pp) { printf(" %s", *pp); if ((pp - motion_str + 1) == ME_ZERO) printf("(fastest)"); else if ((pp - motion_str + 1) == ME_FULL) printf("(slowest)"); else if ((pp - motion_str + 1) == ME_EPZS) printf("(default)"); pp++; } printf("\n"); exit(1); } void show_help(void) { const char *prog; const OptionDef *po; int i, expert; prog = do_play ? "ffplay" : "ffmpeg"; printf("%s version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n", prog); if (!do_play) { printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n" "Hyper fast MPEG1/MPEG4/H263/RV and AC3/MPEG audio encoder\n"); } else { printf("usage: ffplay [options] input_file...\n" "Simple audio player\n"); } printf("\n" "Main options are:\n"); for(i=0;i<2;i++) { if (i == 1) printf("\nAdvanced options are:\n"); for(po = options; po->name != NULL; po++) { char buf[64]; expert = (po->flags & OPT_EXPERT) != 0; if (expert == i) { strcpy(buf, po->name); if (po->flags & HAS_ARG) { strcat(buf, " "); strcat(buf, po->argname); } printf("-%-17s %s\n", buf, po->help); } } } exit(1); } const OptionDef options[] = { { "L", 0, {(void*)show_licence}, "show license" }, { "h", 0, {(void*)show_help}, "show help" }, { "formats", 0, {(void*)show_formats}, "show available formats, codecs, protocols, ..." }, { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" }, { "vcd", OPT_BOOL, {(void*)&mpeg_vcd}, "output Video CD MPEG-PS compliant file" }, { "i", HAS_ARG, {(void*)opt_input_file}, "input file name", "filename" }, { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" }, { "map", HAS_ARG | OPT_EXPERT, {(void*)opt_map}, "set input stream mapping", "file:stream" }, { "t", HAS_ARG, {(void*)opt_recording_time}, "set the recording time", "duration" }, { "title", HAS_ARG | OPT_STRING, {(void*)&str_title}, "set the title", "string" }, { "author", HAS_ARG | OPT_STRING, {(void*)&str_author}, "set the author", "string" }, { "copyright", HAS_ARG | OPT_STRING, {(void*)&str_copyright}, "set the copyright", "string" }, { "comment", HAS_ARG | OPT_STRING, {(void*)&str_comment}, "set the comment", "string" }, /* video options */ { "b", HAS_ARG, {(void*)opt_video_bitrate}, "set video bitrate (in kbit/s)", "bitrate" }, { "r", HAS_ARG, {(void*)opt_frame_rate}, "set frame rate (in Hz)", "rate" }, { "s", HAS_ARG, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" }, { "croptop", HAS_ARG, {(void*)opt_frame_crop_top}, "set top crop band size (in pixels)", "size" }, { "cropbottom", HAS_ARG, {(void*)opt_frame_crop_bottom}, "set bottom crop band size (in pixels)", "size" }, { "cropleft", HAS_ARG, {(void*)opt_frame_crop_left}, "set left crop band size (in pixels)", "size" }, { "cropright", HAS_ARG, {(void*)opt_frame_crop_right}, "set right crop band size (in pixels)", "size" }, { "g", HAS_ARG | OPT_EXPERT, {(void*)opt_gop_size}, "set the group of picture size", "gop_size" }, { "intra", OPT_BOOL | OPT_EXPERT, {(void*)&intra_only}, "use only intra frames"}, { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" }, { "qscale", HAS_ARG | OPT_EXPERT, {(void*)opt_qscale}, "use fixed video quantiser scale (VBR)", "q" }, { "qmin", HAS_ARG | OPT_EXPERT, {(void*)opt_qmin}, "min video quantiser scale (VBR)", "q" }, { "qmax", HAS_ARG | OPT_EXPERT, {(void*)opt_qmax}, "max video quantiser scale (VBR)", "q" }, { "qdiff", HAS_ARG | OPT_EXPERT, {(void*)opt_qdiff}, "max difference between the quantiser scale (VBR)", "q" }, { "qblur", HAS_ARG | OPT_EXPERT, {(void*)opt_qblur}, "video quantiser scale blur (VBR)", "blur" }, { "qcomp", HAS_ARG | OPT_EXPERT, {(void*)opt_qcomp}, "video quantiser scale compression (VBR)", "compression" }, { "rc_eq", HAS_ARG | OPT_EXPERT, {(void*)opt_video_rc_eq}, "", "equation" }, { "bt", HAS_ARG, {(void*)opt_video_bitrate_tolerance}, "set video bitrate tolerance (in kbit/s)", "tolerance" }, { "maxrate", HAS_ARG, {(void*)opt_video_bitrate_max}, "set max video bitrate tolerance (in kbit/s)", "bitrate" }, { "minrate", HAS_ARG, {(void*)opt_video_bitrate_min}, "set min video bitrate tolerance (in kbit/s)", "bitrate" }, { "vd", HAS_ARG | OPT_EXPERT, {(void*)opt_video_device}, "set video grab device", "device" }, { "vcodec", HAS_ARG | OPT_EXPERT, {(void*)opt_video_codec}, "force video codec", "codec" }, { "me", HAS_ARG | OPT_EXPERT, {(void*)opt_motion_estimation}, "set motion estimation method", "method" }, { "dct_algo", HAS_ARG | OPT_EXPERT, {(void*)opt_dct_algo}, "set dct algo", "algo" }, { "bf", HAS_ARG | OPT_EXPERT, {(void*)opt_b_frames}, "use 'frames' B frames (only MPEG-4)", "frames" }, { "hq", OPT_BOOL | OPT_EXPERT, {(void*)&use_hq}, "activate high quality settings" }, { "4mv", OPT_BOOL | OPT_EXPERT, {(void*)&use_4mv}, "use four motion vector by macroblock (only MPEG-4)" }, { "bug", HAS_ARG | OPT_EXPERT, {(void*)opt_workaround_bugs}, "workaround not auto detected encoder bugs", "param" }, { "sameq", OPT_BOOL, {(void*)&same_quality}, "use same video quality as source (implies VBR)" }, /* audio options */ { "ab", HAS_ARG, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", }, { "ar", HAS_ARG, {(void*)opt_audio_rate}, "set audio sampling rate (in Hz)", "rate" }, { "ac", HAS_ARG, {(void*)opt_audio_channels}, "set number of audio channels", "channels" }, { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" }, { "ad", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_device}, "set audio device", "device" }, { "acodec", HAS_ARG | OPT_EXPERT, {(void*)opt_audio_codec}, "force audio codec", "codec" }, { "deinterlace", OPT_BOOL | OPT_EXPERT, {(void*)&do_deinterlace}, "deinterlace pictures" }, { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark}, "add timings for benchmarking" }, { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump}, "dump each input packet" }, { "psnr", OPT_BOOL | OPT_EXPERT, {(void*)&do_psnr}, "calculate PSNR of compressed frames" }, { "vstats", OPT_BOOL | OPT_EXPERT, {(void*)&do_vstats}, "dump video coding statistics to file" }, { "bitexact", OPT_EXPERT, {(void*)opt_bitexact}, "only use bit exact algorithms (for codec testing)" }, { NULL, }, }; int main(int argc, char **argv) { int optindex, i; const char *opt, *arg; const OptionDef *po; INT64 ti; av_register_all(); /* detect if invoked as player */ i = strlen(argv[0]); if (i >= 6 && !strcmp(argv[0] + i - 6, "ffplay")) do_play = 1; if (argc <= 1) show_help(); /* parse options */ optindex = 1; while (optindex < argc) { opt = argv[optindex++]; if (opt[0] == '-' && opt[1] != '\0') { po = options; while (po->name != NULL) { if (!strcmp(opt + 1, po->name)) break; po++; } if (!po->name) { fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); exit(1); } arg = NULL; if (po->flags & HAS_ARG) arg = argv[optindex++]; if (po->flags & OPT_STRING) { char *str; str = strdup(arg); *po->u.str_arg = str; } else if (po->flags & OPT_BOOL) { *po->u.int_arg = 1; } else { po->u.func_arg(arg); } } else { if (!do_play) { opt_output_file(opt); } else { opt_input_file(opt); } } } if (!do_play) { /* file converter / grab */ if (nb_output_files <= 0) { fprintf(stderr, "Must supply at least one output file\n"); exit(1); } if (nb_input_files == 0) { prepare_grab(); } } else { /* player */ if (nb_input_files <= 0) { fprintf(stderr, "Must supply at least one input file\n"); exit(1); } prepare_play(); } ti = getutime(); av_encode(output_files, nb_output_files, input_files, nb_input_files, stream_maps, nb_stream_maps); ti = getutime() - ti; if (do_benchmark) { printf("bench: utime=%0.3fs\n", ti / 1000000.0); } /* close files */ for(i=0;i<nb_output_files;i++) { if (!(output_files[i]->oformat->flags & AVFMT_NOFILE)) url_fclose(&output_files[i]->pb); } for(i=0;i<nb_input_files;i++) av_close_input_file(input_files[i]); return 0; }