a3x/mediatools
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don't attempt to rewind before demuxing

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byte[] 2020-05-18 21:03:05 -04:00
parent b4de9fb0fb
commit db8de06306
3 changed files with 19 additions and 6 deletions
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20
src/png.c
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@ -2,6 +2,24 @@
#include <libswscale/swscale.h>
#include "png.h"
enum AVPixelFormat pix_fmt(AVFrame *in_frame)
{
// [swscaler @ 0x219f6c0]
// deprecated pixel format used, make sure you did set range correctly
switch (in_frame->format) {
case AV_PIX_FMT_YUVJ420P:
return AV_PIX_FMT_YUV420P;
case AV_PIX_FMT_YUVJ422P:
return AV_PIX_FMT_YUV422P;
case AV_PIX_FMT_YUVJ444P:
return AV_PIX_FMT_YUV444P;
case AV_PIX_FMT_YUVJ440P:
return AV_PIX_FMT_YUV440P;
default:
return in_frame->format;
}
}
int mediatools_write_frame_to_png(AVFrame *in_frame, const char *path)
{
struct SwsContext *sws_ctx = NULL;
@ -64,7 +82,7 @@ int mediatools_write_frame_to_png(AVFrame *in_frame, const char *path)
// Rewrite frame into correct color format
sws_ctx = sws_getContext(in_frame->width, in_frame->height, in_frame->format, out_frame->width, out_frame->height, AV_PIX_FMT_RGBA, SWS_LANCZOS, NULL, NULL, NULL);
sws_ctx = sws_getContext(in_frame->width, in_frame->height, pix_fmt(in_frame), out_frame->width, out_frame->height, AV_PIX_FMT_RGBA, SWS_LANCZOS, NULL, NULL, NULL);
if (!sws_ctx)
goto error;

3
src/stat.c
View file

@ -55,9 +55,6 @@ int main(int argc, char *argv[])
return -1;
}
// Best effort attempt to seek to beginning of file
av_seek_frame(format, -1, 0, AVSEEK_FLAG_BACKWARD);
uint64_t frames = 0;
int64_t last_pts = 0;
int last_stream = 0;

2
src/thumb.c
View file

@ -65,8 +65,6 @@ int main(int argc, char *argv[])
return -1;
}
av_seek_frame(format, -1, 0, AVSEEK_FLAG_BACKWARD);
// Loop until we get to the first video frame past the intended pts,
// decoding all video frames along the way.