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avisynth: K&R formatting cosmetics

tags/n2.1
Diego Biurrun 12 years ago
parent
97b052e568
commit
c16ddcc90b
1 changed files with 150 additions and 145 deletions
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  1. +150
    -145
      libavformat/avisynth.c

+ 150
- 145
libavformat/avisynth.c View File

@@ -19,201 +19,206 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/ */


#include <windows.h>
#include <vfw.h>

#include "libavutil/internal.h" #include "libavutil/internal.h"
#include "avformat.h" #include "avformat.h"
#include "internal.h" #include "internal.h"
#include "riff.h" #include "riff.h"


#include <windows.h>
#include <vfw.h>

typedef struct { 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; } AviSynthStream;


typedef struct { typedef struct {
PAVIFILE file;
AviSynthStream *streams;
int nb_streams;
int next_stream;
PAVIFILE file;
AviSynthStream *streams;
int nb_streams;
int next_stream;
} AviSynthContext; } AviSynthContext;


static int avisynth_read_header(AVFormatContext *s) 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; 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; 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) 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) 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 = { AVInputFormat ff_avisynth_demuxer = {


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