diff options
author | Diego Biurrun <diego@biurrun.de> | 2013-09-04 20:01:59 +0200 |
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committer | Diego Biurrun <diego@biurrun.de> | 2013-09-06 11:13:36 +0200 |
commit | c16ddcc90b8be8d72efea3cc262c7354053916bc (patch) | |
tree | d4cb26d6f58a5ae9b3cd44823dd68c370932b594 /libavformat/avisynth.c | |
parent | 97b052e56807fab6887e9ba210a28a622e6a4b78 (diff) | |
download | ffmpeg-c16ddcc90b8be8d72efea3cc262c7354053916bc.tar.gz |
avisynth: K&R formatting cosmetics
Diffstat (limited to 'libavformat/avisynth.c')
-rw-r--r-- | libavformat/avisynth.c | 295 |
1 files changed, 150 insertions, 145 deletions
diff --git a/libavformat/avisynth.c b/libavformat/avisynth.c index 08679e5de7..e411d359b7 100644 --- a/libavformat/avisynth.c +++ b/libavformat/avisynth.c @@ -19,201 +19,206 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <windows.h> +#include <vfw.h> + #include "libavutil/internal.h" #include "avformat.h" #include "internal.h" #include "riff.h" -#include <windows.h> -#include <vfw.h> - typedef struct { - PAVISTREAM handle; - AVISTREAMINFO info; - DWORD read; - LONG chunck_size; - LONG chunck_samples; + PAVISTREAM handle; + AVISTREAMINFO info; + DWORD read; + LONG chunck_size; + LONG chunck_samples; } AviSynthStream; typedef struct { - PAVIFILE file; - AviSynthStream *streams; - int nb_streams; - int next_stream; + PAVIFILE file; + AviSynthStream *streams; + int nb_streams; + int next_stream; } AviSynthContext; static int avisynth_read_header(AVFormatContext *s) { - AviSynthContext *avs = s->priv_data; - HRESULT res; - AVIFILEINFO info; - DWORD id; - AVStream *st; - AviSynthStream *stream; - wchar_t filename_wchar[1024] = { 0 }; - char filename_char[1024] = { 0 }; - - AVIFileInit(); - - /* AviSynth cannot accept UTF-8 file names. */ - MultiByteToWideChar(CP_UTF8, 0, s->filename, -1, filename_wchar, 1024); - WideCharToMultiByte(CP_THREAD_ACP, 0, filename_wchar, -1, filename_char, 1024, NULL, NULL); - res = AVIFileOpen(&avs->file, filename_char, OF_READ|OF_SHARE_DENY_WRITE, NULL); - if (res != S_OK) - { - av_log(s, AV_LOG_ERROR, "AVIFileOpen failed with error %ld", res); - AVIFileExit(); - return -1; + AviSynthContext *avs = s->priv_data; + HRESULT res; + AVIFILEINFO info; + DWORD id; + AVStream *st; + AviSynthStream *stream; + wchar_t filename_wchar[1024] = { 0 }; + char filename_char[1024] = { 0 }; + + AVIFileInit(); + + /* AviSynth cannot accept UTF-8 file names. */ + MultiByteToWideChar(CP_UTF8, 0, s->filename, -1, filename_wchar, 1024); + WideCharToMultiByte(CP_THREAD_ACP, 0, filename_wchar, -1, filename_char, + 1024, NULL, NULL); + res = AVIFileOpen(&avs->file, filename_char, + OF_READ | OF_SHARE_DENY_WRITE, NULL); + if (res != S_OK) { + av_log(s, AV_LOG_ERROR, "AVIFileOpen failed with error %ld", res); + AVIFileExit(); + return -1; } - res = AVIFileInfo(avs->file, &info, sizeof(info)); - if (res != S_OK) - { - av_log(s, AV_LOG_ERROR, "AVIFileInfo failed with error %ld", res); - AVIFileExit(); - return -1; + res = AVIFileInfo(avs->file, &info, sizeof(info)); + if (res != S_OK) { + av_log(s, AV_LOG_ERROR, "AVIFileInfo failed with error %ld", res); + AVIFileExit(); + return -1; } - avs->streams = av_mallocz(info.dwStreams * sizeof(AviSynthStream)); - - for (id=0; id<info.dwStreams; id++) - { - stream = &avs->streams[id]; - stream->read = 0; - if (AVIFileGetStream(avs->file, &stream->handle, 0, id) == S_OK) - { - if (AVIStreamInfo(stream->handle, &stream->info, sizeof(stream->info)) == S_OK) - { - if (stream->info.fccType == streamtypeAUDIO) - { - WAVEFORMATEX wvfmt; - LONG struct_size = sizeof(WAVEFORMATEX); - if (AVIStreamReadFormat(stream->handle, 0, &wvfmt, &struct_size) != S_OK) + avs->streams = av_mallocz(info.dwStreams * sizeof(AviSynthStream)); + + for (id = 0; id < info.dwStreams; id++) { + stream = &avs->streams[id]; + stream->read = 0; + if (AVIFileGetStream(avs->file, &stream->handle, 0, id) == S_OK && + AVIStreamInfo(stream->handle, &stream->info, + sizeof(stream->info)) == S_OK) { + if (stream->info.fccType == streamtypeAUDIO) { + WAVEFORMATEX wvfmt; + LONG struct_size = sizeof(WAVEFORMATEX); + if (AVIStreamReadFormat(stream->handle, 0, + &wvfmt, &struct_size) != S_OK) continue; - st = avformat_new_stream(s, NULL); - st->id = id; - st->codec->codec_type = AVMEDIA_TYPE_AUDIO; - - st->codec->block_align = wvfmt.nBlockAlign; - st->codec->channels = wvfmt.nChannels; - st->codec->sample_rate = wvfmt.nSamplesPerSec; - st->codec->bit_rate = wvfmt.nAvgBytesPerSec * 8; - st->codec->bits_per_coded_sample = wvfmt.wBitsPerSample; - - stream->chunck_samples = wvfmt.nSamplesPerSec * (uint64_t)info.dwScale / (uint64_t)info.dwRate; - stream->chunck_size = stream->chunck_samples * wvfmt.nChannels * wvfmt.wBitsPerSample / 8; - - st->codec->codec_tag = wvfmt.wFormatTag; - st->codec->codec_id = ff_wav_codec_get_id(wvfmt.wFormatTag, st->codec->bits_per_coded_sample); - } - else if (stream->info.fccType == streamtypeVIDEO) - { - BITMAPINFO imgfmt; - LONG struct_size = sizeof(BITMAPINFO); - - stream->chunck_size = stream->info.dwSampleSize; - stream->chunck_samples = 1; - - if (AVIStreamReadFormat(stream->handle, 0, &imgfmt, &struct_size) != S_OK) + st = avformat_new_stream(s, NULL); + st->id = id; + st->codec->codec_type = AVMEDIA_TYPE_AUDIO; + + st->codec->block_align = wvfmt.nBlockAlign; + st->codec->channels = wvfmt.nChannels; + st->codec->sample_rate = wvfmt.nSamplesPerSec; + st->codec->bit_rate = wvfmt.nAvgBytesPerSec * 8; + st->codec->bits_per_coded_sample = wvfmt.wBitsPerSample; + + stream->chunck_samples = wvfmt.nSamplesPerSec * + (uint64_t)info.dwScale / + (uint64_t)info.dwRate; + stream->chunck_size = stream->chunck_samples * + wvfmt.nChannels * + wvfmt.wBitsPerSample / 8; + + st->codec->codec_tag = wvfmt.wFormatTag; + st->codec->codec_id = + ff_wav_codec_get_id(wvfmt.wFormatTag, + st->codec->bits_per_coded_sample); + } else if (stream->info.fccType == streamtypeVIDEO) { + BITMAPINFO imgfmt; + LONG struct_size = sizeof(BITMAPINFO); + + stream->chunck_size = stream->info.dwSampleSize; + stream->chunck_samples = 1; + + if (AVIStreamReadFormat(stream->handle, 0, &imgfmt, + &struct_size) != S_OK) continue; - st = avformat_new_stream(s, NULL); - st->id = id; - st->codec->codec_type = AVMEDIA_TYPE_VIDEO; - st->avg_frame_rate.num = stream->info.dwRate; - st->avg_frame_rate.den = stream->info.dwScale; - - st->codec->width = imgfmt.bmiHeader.biWidth; - st->codec->height = imgfmt.bmiHeader.biHeight; - - st->codec->bits_per_coded_sample = imgfmt.bmiHeader.biBitCount; - st->codec->bit_rate = (uint64_t)stream->info.dwSampleSize * (uint64_t)stream->info.dwRate * 8 / (uint64_t)stream->info.dwScale; - st->codec->codec_tag = imgfmt.bmiHeader.biCompression; - st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, imgfmt.bmiHeader.biCompression); - - st->duration = stream->info.dwLength; - } - else - { - AVIStreamRelease(stream->handle); - continue; - } + st = avformat_new_stream(s, NULL); + st->id = id; + st->codec->codec_type = AVMEDIA_TYPE_VIDEO; + st->avg_frame_rate.num = stream->info.dwRate; + st->avg_frame_rate.den = stream->info.dwScale; + + st->codec->width = imgfmt.bmiHeader.biWidth; + st->codec->height = imgfmt.bmiHeader.biHeight; + + st->codec->bits_per_coded_sample = imgfmt.bmiHeader.biBitCount; + st->codec->bit_rate = (uint64_t)stream->info.dwSampleSize * + (uint64_t)stream->info.dwRate * 8 / + (uint64_t)stream->info.dwScale; + st->codec->codec_tag = imgfmt.bmiHeader.biCompression; + st->codec->codec_id = + ff_codec_get_id(ff_codec_bmp_tags, + imgfmt.bmiHeader.biCompression); + + st->duration = stream->info.dwLength; + } else { + AVIStreamRelease(stream->handle); + continue; + } - avs->nb_streams++; + avs->nb_streams++; - st->codec->stream_codec_tag = stream->info.fccHandler; + st->codec->stream_codec_tag = stream->info.fccHandler; - avpriv_set_pts_info(st, 64, info.dwScale, info.dwRate); - st->start_time = stream->info.dwStart; - } + avpriv_set_pts_info(st, 64, info.dwScale, info.dwRate); + st->start_time = stream->info.dwStart; } } - return 0; + return 0; } static int avisynth_read_packet(AVFormatContext *s, AVPacket *pkt) { - AviSynthContext *avs = s->priv_data; - HRESULT res; - AviSynthStream *stream; - int stream_id = avs->next_stream; - LONG read_size; + AviSynthContext *avs = s->priv_data; + HRESULT res; + AviSynthStream *stream; + int stream_id = avs->next_stream; + LONG read_size; - // handle interleaving manually... - stream = &avs->streams[stream_id]; + // handle interleaving manually... + stream = &avs->streams[stream_id]; - if (stream->read >= stream->info.dwLength) - return AVERROR(EIO); + if (stream->read >= stream->info.dwLength) + return AVERROR(EIO); - if (av_new_packet(pkt, stream->chunck_size)) - return AVERROR(EIO); - pkt->stream_index = stream_id; - pkt->pts = avs->streams[stream_id].read / avs->streams[stream_id].chunck_samples; + if (av_new_packet(pkt, stream->chunck_size)) + return AVERROR(EIO); + pkt->stream_index = stream_id; + pkt->pts = avs->streams[stream_id].read / + avs->streams[stream_id].chunck_samples; - res = AVIStreamRead(stream->handle, stream->read, stream->chunck_samples, pkt->data, stream->chunck_size, &read_size, NULL); + res = AVIStreamRead(stream->handle, stream->read, stream->chunck_samples, + pkt->data, stream->chunck_size, &read_size, NULL); - pkt->pts = stream->read; - pkt->size = read_size; + pkt->pts = stream->read; + pkt->size = read_size; - stream->read += stream->chunck_samples; + stream->read += stream->chunck_samples; - // prepare for the next stream to read - do { - avs->next_stream = (avs->next_stream+1) % avs->nb_streams; - } while (avs->next_stream != stream_id && s->streams[avs->next_stream]->discard >= AVDISCARD_ALL); + // prepare for the next stream to read + do + avs->next_stream = (avs->next_stream + 1) % avs->nb_streams; + while (avs->next_stream != stream_id && + s->streams[avs->next_stream]->discard >= AVDISCARD_ALL); - return (res == S_OK) ? pkt->size : -1; + return (res == S_OK) ? pkt->size : -1; } static int avisynth_read_close(AVFormatContext *s) { - AviSynthContext *avs = s->priv_data; - int i; + AviSynthContext *avs = s->priv_data; + int i; - for (i=0;i<avs->nb_streams;i++) - { - AVIStreamRelease(avs->streams[i].handle); - } + for (i = 0; i < avs->nb_streams; i++) + AVIStreamRelease(avs->streams[i].handle); - av_free(avs->streams); - AVIFileRelease(avs->file); - AVIFileExit(); - return 0; + av_free(avs->streams); + AVIFileRelease(avs->file); + AVIFileExit(); + return 0; } -static int avisynth_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags) +static int avisynth_read_seek(AVFormatContext *s, int stream_index, + int64_t pts, int flags) { - AviSynthContext *avs = s->priv_data; - int stream_id; + AviSynthContext *avs = s->priv_data; + int stream_id; - for (stream_id = 0; stream_id < avs->nb_streams; stream_id++) - { - avs->streams[stream_id].read = pts * avs->streams[stream_id].chunck_samples; - } + for (stream_id = 0; stream_id < avs->nb_streams; stream_id++) + avs->streams[stream_id].read = + pts * avs->streams[stream_id].chunck_samples; - return 0; + return 0; } AVInputFormat ff_avisynth_demuxer = { |