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Sat, 11 Feb 2023 00:29:56 +0100 (CET) From: Marton Balint To: ffmpeg-devel@ffmpeg.org Date: Sat, 11 Feb 2023 00:29:11 +0100 Message-Id: <20230210232913.8763-2-cus@passwd.hu> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230210232913.8763-1-cus@passwd.hu> References: <20230128181523.9837-1-cus@passwd.hu> <20230210232913.8763-1-cus@passwd.hu> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH v2 2/4] avcodec/diracdec: do not use AVFrame.display_picture_number for decoding X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Marton Balint Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: Signed-off-by: Marton Balint --- libavcodec/diracdec.c | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c index a5cad29597..22a2925188 100644 --- a/libavcodec/diracdec.c +++ b/libavcodec/diracdec.c @@ -77,6 +77,7 @@ typedef struct { uint8_t *hpel[3][4]; uint8_t *hpel_base[3][4]; int reference; + unsigned picture_number; } DiracFrame; typedef struct { @@ -252,13 +253,13 @@ static inline int divide3(int x) return (int)((x+1U)*21845 + 10922) >> 16; } -static DiracFrame *remove_frame(DiracFrame *framelist[], int picnum) +static DiracFrame *remove_frame(DiracFrame *framelist[], unsigned picnum) { DiracFrame *remove_pic = NULL; int i, remove_idx = -1; for (i = 0; framelist[i]; i++) - if (framelist[i]->avframe->display_picture_number == picnum) { + if (framelist[i]->picture_number == picnum) { remove_pic = framelist[i]; remove_idx = i; } @@ -2002,7 +2003,7 @@ static int dirac_decode_picture_header(DiracContext *s) GetBitContext *gb = &s->gb; /* [DIRAC_STD] 11.1.1 Picture Header. picture_header() PICTURE_NUM */ - picnum = s->current_picture->avframe->display_picture_number = get_bits_long(gb, 32); + picnum = s->current_picture->picture_number = get_bits_long(gb, 32); av_log(s->avctx,AV_LOG_DEBUG,"PICTURE_NUM: %d\n",picnum); @@ -2021,9 +2022,9 @@ static int dirac_decode_picture_header(DiracContext *s) /* Jordi: this is needed if the referenced picture hasn't yet arrived */ for (j = 0; j < MAX_REFERENCE_FRAMES && refdist; j++) if (s->ref_frames[j] - && FFABS(s->ref_frames[j]->avframe->display_picture_number - refnum) < refdist) { + && FFABS(s->ref_frames[j]->picture_number - refnum) < refdist) { s->ref_pics[i] = s->ref_frames[j]; - refdist = FFABS(s->ref_frames[j]->avframe->display_picture_number - refnum); + refdist = FFABS(s->ref_frames[j]->picture_number - refnum); } if (!s->ref_pics[i] || refdist) @@ -2062,7 +2063,7 @@ static int dirac_decode_picture_header(DiracContext *s) /* if reference array is full, remove the oldest as per the spec */ while (add_frame(s->ref_frames, MAX_REFERENCE_FRAMES, s->current_picture)) { av_log(s->avctx, AV_LOG_ERROR, "Reference frame overflow\n"); - remove_frame(s->ref_frames, s->ref_frames[0]->avframe->display_picture_number)->reference &= DELAYED_PIC_REF; + remove_frame(s->ref_frames, s->ref_frames[0]->picture_number)->reference &= DELAYED_PIC_REF; } } @@ -2090,7 +2091,7 @@ static int get_delayed_pic(DiracContext *s, AVFrame *picture, int *got_frame) /* find frame with lowest picture number */ for (i = 1; s->delay_frames[i]; i++) - if (s->delay_frames[i]->avframe->display_picture_number < out->avframe->display_picture_number) { + if (s->delay_frames[i]->picture_number < out->picture_number) { out = s->delay_frames[i]; out_idx = i; } @@ -2102,6 +2103,7 @@ static int get_delayed_pic(DiracContext *s, AVFrame *picture, int *got_frame) out->reference ^= DELAYED_PIC_REF; if((ret = av_frame_ref(picture, out->avframe)) < 0) return ret; + picture->display_picture_number = out->picture_number; *got_frame = 1; } @@ -2318,19 +2320,19 @@ static int dirac_decode_frame(AVCodecContext *avctx, AVFrame *picture, if (!s->current_picture) return buf_size; - if (s->current_picture->avframe->display_picture_number > s->frame_number) { + if (s->current_picture->picture_number > s->frame_number) { DiracFrame *delayed_frame = remove_frame(s->delay_frames, s->frame_number); s->current_picture->reference |= DELAYED_PIC_REF; if (add_frame(s->delay_frames, MAX_DELAY, s->current_picture)) { - int min_num = s->delay_frames[0]->avframe->display_picture_number; + unsigned min_num = s->delay_frames[0]->picture_number; /* Too many delayed frames, so we display the frame with the lowest pts */ av_log(avctx, AV_LOG_ERROR, "Delay frame overflow\n"); for (i = 1; s->delay_frames[i]; i++) - if (s->delay_frames[i]->avframe->display_picture_number < min_num) - min_num = s->delay_frames[i]->avframe->display_picture_number; + if (s->delay_frames[i]->picture_number < min_num) + min_num = s->delay_frames[i]->picture_number; delayed_frame = remove_frame(s->delay_frames, min_num); add_frame(s->delay_frames, MAX_DELAY, s->current_picture); @@ -2340,18 +2342,19 @@ static int dirac_decode_frame(AVCodecContext *avctx, AVFrame *picture, delayed_frame->reference ^= DELAYED_PIC_REF; if((ret = av_frame_ref(picture, delayed_frame->avframe)) < 0) return ret; + s->frame_number = delayed_frame->picture_number + 1LL; + picture->display_picture_number = delayed_frame->picture_number; *got_frame = 1; } - } else if (s->current_picture->avframe->display_picture_number == s->frame_number) { + } else if (s->current_picture->picture_number == s->frame_number) { /* The right frame at the right time :-) */ if((ret = av_frame_ref(picture, s->current_picture->avframe)) < 0) return ret; + s->frame_number = s->current_picture->picture_number + 1LL; + picture->display_picture_number = s->current_picture->picture_number; *got_frame = 1; } - if (*got_frame) - s->frame_number = picture->display_picture_number + 1LL; - return buf_idx; } -- 2.35.3 _______________________________________________ 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".