Updated FFMPEG to version 1.1.2, using this project: http://sourceforge.net/projects/ffmpeg4android/
This commit is contained in:
Sergii Pylypenko
237
project/jni/ffmpeg/libavformat/avisynth.c
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237
project/jni/ffmpeg/libavformat/avisynth.c
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/*
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* AVISynth support
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* Copyright (c) 2006 DivX, Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avformat.h"
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#include "internal.h"
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#include "riff.h"
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#include <windows.h>
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#include <vfw.h>
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typedef struct {
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PAVISTREAM handle;
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AVISTREAMINFO info;
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DWORD read;
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LONG chunck_size;
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LONG chunck_samples;
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} AVISynthStream;
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typedef struct {
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PAVIFILE file;
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AVISynthStream *streams;
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int nb_streams;
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int next_stream;
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} AVISynthContext;
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static int avisynth_read_header(AVFormatContext *s)
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{
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AVISynthContext *avs = s->priv_data;
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HRESULT res;
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AVIFILEINFO info;
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DWORD id;
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AVStream *st;
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AVISynthStream *stream;
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wchar_t filename_wchar[1024] = { 0 };
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char filename_char[1024] = { 0 };
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AVIFileInit();
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/* avisynth can't accept UTF-8 filename */
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MultiByteToWideChar(CP_UTF8, 0, s->filename, -1, filename_wchar, 1024);
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WideCharToMultiByte(CP_THREAD_ACP, 0, filename_wchar, -1, filename_char, 1024, NULL, NULL);
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res = AVIFileOpen(&avs->file, filename_char, OF_READ|OF_SHARE_DENY_WRITE, NULL);
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if (res != S_OK)
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{
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av_log(s, AV_LOG_ERROR, "AVIFileOpen failed with error %ld\n", res);
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AVIFileExit();
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return -1;
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}
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res = AVIFileInfo(avs->file, &info, sizeof(info));
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if (res != S_OK)
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{
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av_log(s, AV_LOG_ERROR, "AVIFileInfo failed with error %ld\n", res);
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AVIFileExit();
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return -1;
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}
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avs->streams = av_mallocz(info.dwStreams * sizeof(AVISynthStream));
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for (id=0; id<info.dwStreams; id++)
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{
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stream = &avs->streams[id];
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stream->read = 0;
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if (AVIFileGetStream(avs->file, &stream->handle, 0, id) == S_OK)
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{
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if (AVIStreamInfo(stream->handle, &stream->info, sizeof(stream->info)) == S_OK)
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{
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if (stream->info.fccType == streamtypeAUDIO)
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{
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WAVEFORMATEX wvfmt;
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LONG struct_size = sizeof(WAVEFORMATEX);
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if (AVIStreamReadFormat(stream->handle, 0, &wvfmt, &struct_size) != S_OK)
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continue;
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st = avformat_new_stream(s, NULL);
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st->id = id;
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st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
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st->codec->block_align = wvfmt.nBlockAlign;
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st->codec->channels = wvfmt.nChannels;
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st->codec->sample_rate = wvfmt.nSamplesPerSec;
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st->codec->bit_rate = wvfmt.nAvgBytesPerSec * 8;
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st->codec->bits_per_coded_sample = wvfmt.wBitsPerSample;
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stream->chunck_samples = wvfmt.nSamplesPerSec * (uint64_t)info.dwScale / (uint64_t)info.dwRate;
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stream->chunck_size = stream->chunck_samples * wvfmt.nChannels * wvfmt.wBitsPerSample / 8;
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st->codec->codec_tag = wvfmt.wFormatTag;
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st->codec->codec_id = ff_wav_codec_get_id(wvfmt.wFormatTag, st->codec->bits_per_coded_sample);
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}
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else if (stream->info.fccType == streamtypeVIDEO)
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{
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BITMAPINFO imgfmt;
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LONG struct_size = sizeof(BITMAPINFO);
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stream->chunck_size = stream->info.dwSampleSize;
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stream->chunck_samples = 1;
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if (AVIStreamReadFormat(stream->handle, 0, &imgfmt, &struct_size) != S_OK)
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continue;
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st = avformat_new_stream(s, NULL);
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st->id = id;
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st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
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st->avg_frame_rate.num = stream->info.dwRate;
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st->avg_frame_rate.den = stream->info.dwScale;
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#if FF_API_R_FRAME_RATE
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st->r_frame_rate = st->avg_frame_rate;
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#endif
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st->codec->width = imgfmt.bmiHeader.biWidth;
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st->codec->height = imgfmt.bmiHeader.biHeight;
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st->codec->bits_per_coded_sample = imgfmt.bmiHeader.biBitCount;
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st->codec->bit_rate = (uint64_t)stream->info.dwSampleSize * (uint64_t)stream->info.dwRate * 8 / (uint64_t)stream->info.dwScale;
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st->codec->codec_tag = imgfmt.bmiHeader.biCompression;
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st->codec->codec_id = ff_codec_get_id(ff_codec_bmp_tags, imgfmt.bmiHeader.biCompression);
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if (st->codec->codec_id == AV_CODEC_ID_RAWVIDEO && imgfmt.bmiHeader.biCompression== BI_RGB) {
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st->codec->extradata = av_malloc(9 + FF_INPUT_BUFFER_PADDING_SIZE);
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if (st->codec->extradata) {
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st->codec->extradata_size = 9;
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memcpy(st->codec->extradata, "BottomUp", 9);
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}
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}
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st->duration = stream->info.dwLength;
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}
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else
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{
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AVIStreamRelease(stream->handle);
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continue;
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}
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avs->nb_streams++;
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st->codec->stream_codec_tag = stream->info.fccHandler;
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avpriv_set_pts_info(st, 64, info.dwScale, info.dwRate);
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st->start_time = stream->info.dwStart;
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}
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}
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}
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return 0;
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}
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static int avisynth_read_packet(AVFormatContext *s, AVPacket *pkt)
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{
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AVISynthContext *avs = s->priv_data;
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HRESULT res;
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AVISynthStream *stream;
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int stream_id = avs->next_stream;
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LONG read_size;
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// handle interleaving manually...
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stream = &avs->streams[stream_id];
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if (stream->read >= stream->info.dwLength)
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return AVERROR(EIO);
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if (av_new_packet(pkt, stream->chunck_size))
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return AVERROR(EIO);
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pkt->stream_index = stream_id;
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pkt->pts = avs->streams[stream_id].read / avs->streams[stream_id].chunck_samples;
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res = AVIStreamRead(stream->handle, stream->read, stream->chunck_samples, pkt->data, stream->chunck_size, &read_size, NULL);
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pkt->size = read_size;
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stream->read += stream->chunck_samples;
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// prepare for the next stream to read
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do {
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avs->next_stream = (avs->next_stream+1) % avs->nb_streams;
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} while (avs->next_stream != stream_id && s->streams[avs->next_stream]->discard >= AVDISCARD_ALL);
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return (res == S_OK) ? pkt->size : -1;
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}
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static int avisynth_read_close(AVFormatContext *s)
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{
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AVISynthContext *avs = s->priv_data;
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int i;
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for (i=0;i<avs->nb_streams;i++)
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{
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AVIStreamRelease(avs->streams[i].handle);
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}
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av_free(avs->streams);
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AVIFileRelease(avs->file);
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AVIFileExit();
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return 0;
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}
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static int avisynth_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags)
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{
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AVISynthContext *avs = s->priv_data;
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int stream_id;
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for (stream_id = 0; stream_id < avs->nb_streams; stream_id++)
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{
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avs->streams[stream_id].read = pts * avs->streams[stream_id].chunck_samples;
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}
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return 0;
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}
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AVInputFormat ff_avisynth_demuxer = {
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.name = "avs",
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.long_name = NULL_IF_CONFIG_SMALL("AVISynth"),
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.priv_data_size = sizeof(AVISynthContext),
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.read_header = avisynth_read_header,
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.read_packet = avisynth_read_packet,
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.read_close = avisynth_read_close,
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.read_seek = avisynth_read_seek,
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.extensions = "avs",
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};
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