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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: With this patch, msmpeg4v1 and msmpeg4v2 no longer use MpegEncContext.coded_block. Signed-off-by: Andreas Rheinhardt --- libavcodec/msmpeg4enc.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/libavcodec/msmpeg4enc.c b/libavcodec/msmpeg4enc.c index c159256068..5e6bc231d4 100644 --- a/libavcodec/msmpeg4enc.c +++ b/libavcodec/msmpeg4enc.c @@ -389,7 +389,6 @@ void ff_msmpeg4_encode_mb(MpegEncContext * s, { int cbp, coded_cbp, i; int pred_x, pred_y; - uint8_t *coded_block; ff_msmpeg4_handle_slices(s); @@ -449,20 +448,10 @@ void ff_msmpeg4_encode_mb(MpegEncContext * s, } else { /* compute cbp */ cbp = 0; - coded_cbp = 0; - for (i = 0; i < 6; i++) { - int val, pred; - val = (s->block_last_index[i] >= 1); + for (int i = 0; i < 6; i++) { + int val = (s->block_last_index[i] >= 1); cbp |= val << (5 - i); - if (i < 4) { - /* predict value for close blocks only for luma */ - pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block); - *coded_block = val; - val = val ^ pred; - } - coded_cbp |= val << (5 - i); } - if(s->msmpeg4_version<=2){ if (s->pict_type == AV_PICTURE_TYPE_I) { put_bits(&s->pb, @@ -480,6 +469,18 @@ void ff_msmpeg4_encode_mb(MpegEncContext * s, ff_h263_cbpy_tab[cbp>>2][0]); }else{ if (s->pict_type == AV_PICTURE_TYPE_I) { + /* compute coded_cbp; the 0x3 corresponds to chroma cbp; + * luma coded_cbp are set in the loop below */ + coded_cbp = cbp & 0x3; + for (int i = 0; i < 4; i++) { + uint8_t *coded_block; + int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block); + int val = (s->block_last_index[i] >= 1); + *coded_block = val; + val ^= pred; + coded_cbp |= val << (5 - i); + } + put_bits(&s->pb, ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]); } else { -- 2.40.1 _______________________________________________ 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".