ffmpeg | branch: master | Scott Theisen <scott.the....@gmail.com> | Wed Dec 18 16:59:53 2024 -0500| [9da1d2e66ab1ac9dcfaa290bbea78b2a4900ac0a] | committer: Zhao Zhili
libavcodec/v4l2_buffers.c: set AVFrame interlaced flags Originally from: https://github.com/MythTV/mythtv/commit/669955c6cb29196b4b5120451b5b998d67a65749 Signed-off-by: Zhao Zhili <zhiliz...@tencent.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9da1d2e66ab1ac9dcfaa290bbea78b2a4900ac0a --- libavcodec/v4l2_buffers.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/libavcodec/v4l2_buffers.c b/libavcodec/v4l2_buffers.c index aba9cfad83..7f597a424a 100644 --- a/libavcodec/v4l2_buffers.c +++ b/libavcodec/v4l2_buffers.c @@ -210,6 +210,23 @@ static enum AVColorTransferCharacteristic v4l2_get_color_trc(V4L2Buffer *buf) return AVCOL_TRC_UNSPECIFIED; } +static void v4l2_get_interlacing(AVFrame *frame, V4L2Buffer *buf) +{ + enum v4l2_field field = V4L2_TYPE_IS_MULTIPLANAR(buf->buf.type) ? + buf->context->format.fmt.pix_mp.field : + buf->context->format.fmt.pix.field; + + switch (field) { + case V4L2_FIELD_INTERLACED: + case V4L2_FIELD_INTERLACED_TB: + frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST; + /* fallthrough */ + case V4L2_FIELD_INTERLACED_BT: + frame->flags |= AV_FRAME_FLAG_INTERLACED; + break; + } +} + static void v4l2_free_buffer(void *opaque, uint8_t *unused) { V4L2Buffer* avbuf = opaque; @@ -434,6 +451,7 @@ int ff_v4l2_buffer_buf_to_avframe(AVFrame *frame, V4L2Buffer *avbuf) frame->color_trc = v4l2_get_color_trc(avbuf); frame->pts = v4l2_get_pts(avbuf); frame->pkt_dts = AV_NOPTS_VALUE; + v4l2_get_interlacing(frame, avbuf); /* these values are updated also during re-init in v4l2_process_driver_event */ frame->height = avbuf->context->height; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
