int ff_cmap_read_palette(AVCodecContext *avctx, uint32_t *pal) { int count, i; if (avctx->bits_per_coded_sample > 8) { av_log(avctx, AV_LOG_ERROR, "bit_per_coded_sample > 8 not supported\n"); return AVERROR_INVALIDDATA; } count = 1 << avctx->bits_per_coded_sample; if (avctx->extradata_size < count * 3) { av_log(avctx, AV_LOG_ERROR, "palette data underflow\n"); return AVERROR_INVALIDDATA; } for (i=0; i < count; i++) { pal[i] = 0xFF000000 | AV_RB24( avctx->extradata + i*3 ); } return 0; }