diff options
Diffstat (limited to 'contrib/ffmpeg/A06-h264-recovery-point.patch')
| -rw-r--r-- | contrib/ffmpeg/A06-h264-recovery-point.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/contrib/ffmpeg/A06-h264-recovery-point.patch b/contrib/ffmpeg/A06-h264-recovery-point.patch new file mode 100644 index 000000000..8b1531444 --- /dev/null +++ b/contrib/ffmpeg/A06-h264-recovery-point.patch @@ -0,0 +1,55 @@ +diff --git a/libavcodec/h264.c b/libavcodec/h264.c +index d047448..e96a129 100644 +--- a/libavcodec/h264.c ++++ b/libavcodec/h264.c +@@ -3654,9 +3654,18 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){ + if((err = decode_slice_header(hx, h))) + break; + ++ if (h->sei_recovery_frame_cnt >= 0) { ++ h->recovery_frame = (h->frame_num + h->sei_recovery_frame_cnt) % ++ (1 << h->sps.log2_max_frame_num); ++ } ++ + s->current_picture_ptr->key_frame |= +- (hx->nal_unit_type == NAL_IDR_SLICE) || +- (h->sei_recovery_frame_cnt >= 0); ++ (hx->nal_unit_type == NAL_IDR_SLICE); ++ ++ if (h->recovery_frame == h->frame_num) { ++ s->current_picture_ptr->key_frame |= 1; ++ h->recovery_frame = -1; ++ } + + if (h->current_slice == 1) { + if(!(s->flags2 & CODEC_FLAG2_CHUNKS)) { +diff --git a/libavcodec/h264.h b/libavcodec/h264.h +index 122a54a..cd044b0 100644 +--- a/libavcodec/h264.h ++++ b/libavcodec/h264.h +@@ -575,6 +575,13 @@ typedef struct H264Context{ + * frames. + */ + int sei_recovery_frame_cnt; ++ /** ++ * recovery_frame is the frame_num at which the next frame should ++ * be fully constructed. ++ * ++ * Set to -1 when not expecting a recovery point. ++ */ ++ int recovery_frame; + + int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag + int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag +diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c +index 4f52bbe..8d3c40b 100644 +--- a/libavcodec/h264_sei.c ++++ b/libavcodec/h264_sei.c +@@ -38,6 +38,7 @@ static const uint8_t sei_num_clock_ts_table[9]={ + }; + + void ff_h264_reset_sei(H264Context *h) { ++ h->recovery_frame = -1; + h->sei_recovery_frame_cnt = -1; + h->sei_dpb_output_delay = 0; + h->sei_cpb_removal_delay = -1; |