Hi Hayden On Tue, Dec 09, 2025 at 12:57:40PM -0500, Hayden Myers via ffmpeg-devel wrote: > Signed-off-by: Hayden Myers <[email protected]> > --- > libavformat/rtpdec_jpeg.c | 22 +++++++++++++++++++--- > 1 file changed, 19 insertions(+), 3 deletions(-) > > diff --git a/libavformat/rtpdec_jpeg.c b/libavformat/rtpdec_jpeg.c > index 4d9ee0d754..871f3a732e 100644 > --- a/libavformat/rtpdec_jpeg.c > +++ b/libavformat/rtpdec_jpeg.c > @@ -353,9 +353,25 @@ static int jpeg_parse_packet(AVFormatContext *ctx, > PayloadContext *jpeg, > } > > if (off != avio_tell(jpeg->frame) - jpeg->hdr_size) { > - av_log(ctx, AV_LOG_ERROR, > - "Missing packets; dropping frame.\n"); > - return AVERROR(EAGAIN); > + /* The fragment offset may include the quant table data. Allow the > + * offset to differ by the size of the quant header and table. > + */ > +
> + // Default to 2 * 64 byte tables for 8 bit precision. > + uint8_t qtable_len = 128; exact length is not needed here, int tends to lead to fewer surprises > + > + // Use the q table len value stored in the ctx > + if (q >= 127 && q < 255) > + qtable_len = jpeg->qtables_len[q-128]; 127-128 is -1 thus results in out of array. jpeg->qtables_len[-1]; thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Democracy is the form of government in which you can choose your dictator
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