On 12/28/2015 12:07 PM, Nicolas George wrote:
L'octidi 8 nivôse, an CCXXIV, Mats Peterson a écrit :
Michael, he's talking about the OLD patch that was never applied. My patch
has been written from scratch, more or less. I did borrowed some palette
loops from mov.c, but I have also attributed the previous authors at the top
of qtpalette.c properly.
I must say, I find this hunk from 7973603:
+ if (matroska->has_palette) {
+ uint8_t *pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
+ if (!pal) {
+ av_log(matroska->ctx, AV_LOG_ERROR, "Cannot append palette to
packet\n");
+ } else {
+ memcpy(pal, matroska->palette, AVPALETTE_SIZE);
+ }
+ matroska->has_palette = 0;
+ }
looks quite similar to this hunk from
https://trac.ffmpeg.org/attachment/ticket/5071/patchmkvmov.diff :
+ if (matroska->pal) {
+ uint8_t *pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE,
AVPALETTE_SIZE);
+ if (!pal) {
+ av_log(matroska->ctx, AV_LOG_ERROR, "Cannot append palette to
packet\n");
+ } else {
+ memcpy(pal, matroska->pal, AVPALETTE_SIZE);
+ }
+ av_freep(&matroska->pal);
+ }
Especially the use of if/else for error, and actually ignoring the error,
instead of the most common (and more correct, but the rest of the code
ignores error too) "if...return AVERROR(ENOMEM)".
Regards,
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Yes it does, and that's why I said "more or less". That little chunk is
mimicked from mov.c for the record, so it's not his invention really.
--
Mats Peterson
http://matsp888.no-ip.org/~mats/
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