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Diffstat (limited to 'contrib/ffmpeg/libavformat/avisynth.c')
-rw-r--r--contrib/ffmpeg/libavformat/avisynth.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/contrib/ffmpeg/libavformat/avisynth.c b/contrib/ffmpeg/libavformat/avisynth.c
deleted file mode 100644
index 1afcdea5e..000000000
--- a/contrib/ffmpeg/libavformat/avisynth.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * AVISynth support for ffmpeg system
- * Copyright (c) 2006 DivX, Inc.
- *
- * 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
- */
-
-#include "avformat.h"
-#include "riff.h"
-
-#include <windows.h>
-#include <vfw.h>
-
-typedef struct {
- 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;
-} AVISynthContext;
-
-static int avisynth_read_header(AVFormatContext *s, AVFormatParameters *ap)
-{
- AVISynthContext *avs = s->priv_data;
- HRESULT res;
- AVIFILEINFO info;
- DWORD id;
- AVStream *st;
- AVISynthStream *stream;
-
- AVIFileInit();
-
- res = AVIFileOpen(&avs->file, s->filename, 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;
- }
-
- 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)
- continue;
-
- st = av_new_stream(s, id);
- st->codec->codec_type = CODEC_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_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 = wav_codec_get_id(wvfmt.wFormatTag, st->codec->bits_per_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 = av_new_stream(s, id);
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->r_frame_rate.num = stream->info.dwRate;
- st->r_frame_rate.den = stream->info.dwScale;
-
- st->codec->width = imgfmt.bmiHeader.biWidth;
- st->codec->height = imgfmt.bmiHeader.biHeight;
-
- st->codec->bits_per_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 = codec_get_id(codec_bmp_tags, imgfmt.bmiHeader.biCompression);
-
- st->duration = stream->info.dwLength;
- }
- else
- {
- AVIStreamRelease(stream->handle);
- continue;
- }
-
- avs->nb_streams++;
-
- st->codec->stream_codec_tag = stream->info.fccHandler;
-
- av_set_pts_info(st, 64, info.dwScale, info.dwRate);
- st->start_time = stream->info.dwStart;
- }
- }
- }
-
- 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;
-
- // handle interleaving manually...
- stream = &avs->streams[stream_id];
-
- if (stream->read >= stream->info.dwLength)
- return AVERROR_IO;
-
- if (av_new_packet(pkt, stream->chunck_size))
- return AVERROR_IO;
- 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);
-
- pkt->pts = stream->read;
- pkt->size = read_size;
-
- 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);
-
- return (res == S_OK) ? pkt->size : -1;
-}
-
-static int avisynth_read_close(AVFormatContext *s)
-{
- AVISynthContext *avs = s->priv_data;
- int i;
-
- for (i=0;i<avs->nb_streams;i++)
- {
- AVIStreamRelease(avs->streams[i].handle);
- }
-
- 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)
-{
- 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;
- }
-
- return 0;
-}
-
-AVInputFormat avisynth_demuxer = {
- "avs",
- "AVISynth",
- sizeof(AVISynthContext),
- NULL,
- avisynth_read_header,
- avisynth_read_packet,
- avisynth_read_close,
- avisynth_read_seek,
- NULL,
- 0,
- "avs",
-};
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