Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
 help / color / mirror / Atom feed
* [FFmpeg-devel] [PATCH 1/2] avcodec/jpeg2000dec: Set sample aspect ratio before getting buffer
@ 2022-09-23 15:40 Andreas Rheinhardt
  2022-09-23 15:41 ` [FFmpeg-devel] [PATCH 2/2] avcodec/jpeg2000dec: Implement FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM Andreas Rheinhardt
  2022-09-23 18:23 ` [FFmpeg-devel] [PATCH 1/2] avcodec/jpeg2000dec: Set sample aspect ratio before getting buffer Tomas Härdin
  0 siblings, 2 replies; 7+ messages in thread
From: Andreas Rheinhardt @ 2022-09-23 15:40 UTC (permalink / raw)
  To: ffmpeg-devel; +Cc: Andreas Rheinhardt

That way the SAR will be automatically set on the AVFrame.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
If I am not mistaken, then the earlier code would set the sar
with a delay of one frame on the returned frames in case
there is a sar change mid-stream. But I don't have a sample
for this.

 libavcodec/jpeg2000dec.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index 7d9661f29f..c3f2a7aa03 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -2519,6 +2519,10 @@ static int jpeg2000_decode_frame(AVCodecContext *avctx, AVFrame *picture,
     if (ret = jpeg2000_read_main_headers(s))
         goto end;
 
+    if (s->sar.num && s->sar.den)
+        avctx->sample_aspect_ratio = s->sar;
+    s->sar.num = s->sar.den = 0;
+
     /* get picture buffer */
     if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0)
         goto end;
@@ -2547,9 +2551,6 @@ static int jpeg2000_decode_frame(AVCodecContext *avctx, AVFrame *picture,
 
     if (s->avctx->pix_fmt == AV_PIX_FMT_PAL8)
         memcpy(picture->data[1], s->palette, 256 * sizeof(uint32_t));
-    if (s->sar.num && s->sar.den)
-        avctx->sample_aspect_ratio = s->sar;
-    s->sar.num = s->sar.den = 0;
 
     return bytestream2_tell(&s->g);
 
-- 
2.34.1

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2022-09-23 19:56 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-09-23 15:40 [FFmpeg-devel] [PATCH 1/2] avcodec/jpeg2000dec: Set sample aspect ratio before getting buffer Andreas Rheinhardt
2022-09-23 15:41 ` [FFmpeg-devel] [PATCH 2/2] avcodec/jpeg2000dec: Implement FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM Andreas Rheinhardt
2022-09-23 18:24   ` Tomas Härdin
2022-09-23 18:23 ` [FFmpeg-devel] [PATCH 1/2] avcodec/jpeg2000dec: Set sample aspect ratio before getting buffer Tomas Härdin
2022-09-23 18:48   ` Andreas Rheinhardt
2022-09-23 19:36     ` Tomas Härdin
2022-09-23 19:56       ` Andreas Rheinhardt

Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://master.gitmailbox.com/ffmpegdev/0 ffmpegdev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 ffmpegdev ffmpegdev/ https://master.gitmailbox.com/ffmpegdev \
		ffmpegdev@gitmailbox.com
	public-inbox-index ffmpegdev

Example config snippet for mirrors.


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git