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videoio: fix some issues in ffmpeg error processing

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This commit is contained in:
Alexander Alekhin 2015-06-08 13:06:29 +03:00
parent 959d575292
commit 3f2666778a
1 changed files with 9 additions and 4 deletions
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13
modules/videoio/src/cap_ffmpeg_impl.hpp
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@ -1739,7 +1739,7 @@ bool CvVideoWriter_FFMPEG::open( const char * filename, int fourcc,
/* find the video encoder */
codec = avcodec_find_encoder(c->codec_id);
if (!codec) {
fprintf(stderr, "Could not find encoder for codec id %d: %s", c->codec_id, icvFFMPEGErrStr(
fprintf(stderr, "Could not find encoder for codec id %d: %s\n", c->codec_id, icvFFMPEGErrStr(
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 2, 0)
AVERROR_ENCODER_NOT_FOUND
#else
@ -1763,7 +1763,7 @@ bool CvVideoWriter_FFMPEG::open( const char * filename, int fourcc,
avcodec_open(c, codec)
#endif
) < 0) {
fprintf(stderr, "Could not open codec '%s': %s", codec->name, icvFFMPEGErrStr(err));
fprintf(stderr, "Could not open codec '%s': %s\n", codec->name, icvFFMPEGErrStr(err));
return false;
}
@ -1967,6 +1967,13 @@ void OutputMediaStream_FFMPEG::close()
AVStream* OutputMediaStream_FFMPEG::addVideoStream(AVFormatContext *oc, CV_CODEC_ID codec_id, int w, int h, int bitrate, double fps, PixelFormat pixel_format)
{
AVCodec* codec = avcodec_find_encoder(codec_id);
if (!codec)
{
fprintf(stderr, "Could not find encoder for codec id %d\n", codec_id);
return NULL;
}
#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(53, 10, 0)
AVStream* st = avformat_new_stream(oc, 0);
#else
@ -1998,8 +2005,6 @@ AVStream* OutputMediaStream_FFMPEG::addVideoStream(AVFormatContext *oc, CV_CODEC
c->width = w;
c->height = h;
AVCodec* codec = avcodec_find_encoder(c->codec_id);
// time base: this is the fundamental unit of time (in seconds) in terms
// of which frame timestamps are represented. for fixed-fps content,
// timebase should be 1/framerate and timestamp increments should be