st->codec.extradata = av_mallocz(st->codec.extradata_size);
get_buffer(pb, st->codec.extradata, st->codec.extradata_size);
}
+
+ /* Extract palette from extradata if bpp <= 8 */
+ /* This code assumes that extradata contains only palette */
+ /* This is true for all paletted codecs implemented in ffmpeg */
+ if (st->codec.extradata_size && (st->codec.bits_per_sample <= 8)) {
+ st->codec.palctrl = av_mallocz(sizeof(AVPaletteControl));
+#ifdef WORDS_BIGENDIAN
+ for (i = 0; i < FFMIN(st->codec.extradata_size / 4, 256); i++)
+ st->codec.palctrl->palette[i] = bswap_32(st->codec.extradata)[i * 4]);
+#else
+ memcpy(st->codec.palctrl->palette, st->codec.extradata,
+ FFMIN(st->codec.extradata_size, AVPALETTE_SIZE));
+#endif
+ st->codec.palctrl->palette_changed = 1;
+ }
+
st->codec.codec_tag = tag1;
st->codec.codec_id = codec_get_id(codec_bmp_tags, tag1);
}
AVStream *st = s->streams[i];
av_free(st->priv_data);
av_free(st->codec.extradata);
+ av_free(st->codec.palctrl);
}
return 0;
}
if(st->codec.extradata_size & 1) //FIXME check if the encoder really did this correctly
get_byte(pb);
+ /* Extract palette from extradata if bpp <= 8 */
+ /* This code assumes that extradata contains only palette */
+ /* This is true for all paletted codecs implemented in ffmpeg */
+ if (st->codec.extradata_size && (st->codec.bits_per_sample <= 8)) {
+ st->codec.palctrl = av_mallocz(sizeof(AVPaletteControl));
+#ifdef WORDS_BIGENDIAN
+ for (i = 0; i < FFMIN(st->codec.extradata_size / 4, 256); i++)
+ st->codec.palctrl->palette[i] = bswap_32(st->codec.extradata)[i * 4]);
+#else
+ memcpy(st->codec.palctrl->palette, st->codec.extradata,
+ FFMIN(st->codec.extradata_size, AVPALETTE_SIZE));
+#endif
+ st->codec.palctrl->palette_changed = 1;
+ }
+
#ifdef DEBUG
print_tag("video", tag1, 0);
#endif
AVStream *st = s->streams[i];
// av_free(st->priv_data);
av_free(st->codec.extradata);
+ av_free(st->codec.palctrl);
}
if (avi->dv_demux)