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calculate frame_num for recovery point "keyframe"
recovery points that have non-zero recovery_frame_cnt resulted in flagging incomplete frames as keyframes. This delays setting the keyframe flag till the frame has been fully constructed.
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@ -3714,9 +3714,19 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
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if((err = decode_slice_header(hx, h)))
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break;
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if (h->sei_recovery_frame_cnt >= 0) {
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h->recovery_frame = (h->frame_num + h->sei_recovery_frame_cnt) %
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(1 << h->sps.log2_max_frame_num);
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}
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s->current_picture_ptr->f.key_frame |=
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(hx->nal_unit_type == NAL_IDR_SLICE) ||
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(h->sei_recovery_frame_cnt >= 0);
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(hx->nal_unit_type == NAL_IDR_SLICE);
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if (h->recovery_frame == h->frame_num) {
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s->current_picture_ptr->f.key_frame |= 1;
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h->recovery_frame = -1;
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}
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h->sync |= !!s->current_picture_ptr->f.key_frame;
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h->sync |= 3*!!(s->flags2 & CODEC_FLAG2_SHOW_ALL);
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s->current_picture_ptr->sync = h->sync;
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@ -571,6 +571,13 @@ typedef struct H264Context{
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* frames.
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*/
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int sei_recovery_frame_cnt;
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/**
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* recovery_frame is the frame_num at which the next frame should
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* be fully constructed.
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*
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* Set to -1 when not expecting a recovery point.
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*/
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int recovery_frame;
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int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag
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int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag
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