diff options
Diffstat (limited to 'ext/libav/gstavutils.h')
| -rw-r--r-- | ext/libav/gstavutils.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/ext/libav/gstavutils.h b/ext/libav/gstavutils.h index d18b979..7b41b66 100644 --- a/ext/libav/gstavutils.h +++ b/ext/libav/gstavutils.h @@ -29,6 +29,26 @@ #include <gst/gst.h> +/* Introduced since ffmpeg version 4.3 + * + * Note: Not all ffmpeg encoders seem to be reusable after flushing/draining. + * So if ffmpeg encoder doesn't support it, we should reopen encoding session. + * + * Before ffmpeg 4.3, avcodec_flush_buffers() was implemented in + * libavcodec/decodec.c but it was moved to libavcodec/utils.c and it would be + * accepted if encoder supports AV_CODEC_CAP_ENCODER_FLUSH flag. + * That implies that avcodec_flush_buffers() wasn't intended to be working + * properly for encoders. + */ +#ifndef AV_CODEC_CAP_ENCODER_FLUSH +/* + * This encoder can be flushed using avcodec_flush_buffers(). If this flag is + * not set, the encoder must be closed and reopened to ensure that no frames + * remain pending. + */ +#define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21) +#endif + /* *Get the size of an picture */ @@ -79,7 +99,7 @@ gst_ffmpeg_time_gst_to_ff (guint64 time, AVRational base) return out; } -void +void gst_ffmpeg_init_pix_fmt_info(void); int |