[FFmpeg-cvslog] avcodec: remove FF_API_AVCTX_TIMEBASE
James Almer
git at videolan.org
Thu Feb 9 16:37:39 EET 2023
ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Wed Jan 4 13:13:19 2023 -0300| [5f9e848e686a3c0795939809712b260af5c1adb8] | committer: Anton Khirnov
avcodec: remove FF_API_AVCTX_TIMEBASE
Signed-off-by: James Almer <jamrial at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5f9e848e686a3c0795939809712b260af5c1adb8
---
libavcodec/av1_parser.c | 3 ---
libavcodec/avcodec.c | 5 -----
libavcodec/avcodec.h | 3 +--
libavcodec/avs2_parser.c | 4 ++--
libavcodec/avs3_parser.c | 4 ++--
libavcodec/cpia.c | 8 --------
libavcodec/decode.c | 5 -----
libavcodec/h264_parser.c | 7 ++++---
libavcodec/h264dec.c | 6 ------
libavcodec/mjpegdec.c | 2 +-
libavcodec/mpeg4video_parser.c | 4 ++--
libavcodec/mpeg4videodec.c | 3 ---
libavcodec/mpegvideo_parser.c | 5 -----
libavcodec/vc1_parser.c | 2 --
libavcodec/version_major.h | 1 -
libavformat/avformat.c | 33 ++++++++++++++++++++-------------
libavformat/demux.c | 41 +++++++++++++++++++++++------------------
17 files changed, 55 insertions(+), 81 deletions(-)
diff --git a/libavcodec/av1_parser.c b/libavcodec/av1_parser.c
index e57e382757..14dae92fe9 100644
--- a/libavcodec/av1_parser.c
+++ b/libavcodec/av1_parser.c
@@ -168,9 +168,6 @@ static int av1_parser_parse(AVCodecParserContext *ctx,
timing->num_units_in_display_tick, timing->time_scale, INT_MAX);
}
- if (avctx->framerate.num)
- avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-
end:
ff_cbs_fragment_reset(td);
diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c
index efa76d2740..00a5851807 100644
--- a/libavcodec/avcodec.c
+++ b/libavcodec/avcodec.c
@@ -349,11 +349,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
ret = AVERROR(EINVAL);
goto free_and_end;
}
-
-#if FF_API_AVCTX_TIMEBASE
- if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
- avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
}
if (codec->priv_class)
av_assert0(*(const AVClass **)avctx->priv_data == codec->priv_class);
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index cc7a8faa6a..c83e03a08f 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -552,8 +552,7 @@ typedef struct AVCodecContext {
* (fixed_vop_rate == 0 implies that it is different from the framerate)
*
* - encoding: MUST be set by user.
- * - decoding: the use of this field for decoding is deprecated.
- * Use framerate instead.
+ * - decoding: unused.
*/
AVRational time_base;
diff --git a/libavcodec/avs2_parser.c b/libavcodec/avs2_parser.c
index 0350517493..200134f91d 100644
--- a/libavcodec/avs2_parser.c
+++ b/libavcodec/avs2_parser.c
@@ -112,9 +112,9 @@ static void parse_avs2_seq_header(AVCodecParserContext *s, const uint8_t *buf,
s->height = height;
s->coded_width = FFALIGN(width, 8);
s->coded_height = FFALIGN(height, 8);
- avctx->framerate.num = avctx->time_base.den =
+ avctx->framerate.num =
ff_avs2_frame_rate_tab[frame_rate_code].num;
- avctx->framerate.den = avctx->time_base.num =
+ avctx->framerate.den =
ff_avs2_frame_rate_tab[frame_rate_code].den;
avctx->has_b_frames = FFMAX(avctx->has_b_frames, !low_delay);
diff --git a/libavcodec/avs3_parser.c b/libavcodec/avs3_parser.c
index a9fd879e9d..a819b5783d 100644
--- a/libavcodec/avs3_parser.c
+++ b/libavcodec/avs3_parser.c
@@ -117,8 +117,8 @@ static void parse_avs3_nal_units(AVCodecParserContext *s, const uint8_t *buf,
low_delay = get_bits(&gb, 1);
avctx->has_b_frames = FFMAX(avctx->has_b_frames, !low_delay);
- avctx->framerate.num = avctx->time_base.den = ff_avs3_frame_rate_tab[ratecode].num;
- avctx->framerate.den = avctx->time_base.num = ff_avs3_frame_rate_tab[ratecode].den;
+ avctx->framerate.num = ff_avs3_frame_rate_tab[ratecode].num;
+ avctx->framerate.den = ff_avs3_frame_rate_tab[ratecode].den;
s->width = s->coded_width = avctx->width;
s->height = s->coded_height = avctx->height;
diff --git a/libavcodec/cpia.c b/libavcodec/cpia.c
index 99362e73f0..bfd270dae2 100644
--- a/libavcodec/cpia.c
+++ b/libavcodec/cpia.c
@@ -198,14 +198,6 @@ static av_cold int cpia_decode_init(AVCodecContext *avctx)
// output pixel format
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
- /* The default timebase set by the v4l2 demuxer leads to probing which is buggy.
- * Set some reasonable time_base to skip this.
- */
- if (avctx->time_base.num == 1 && avctx->time_base.den == 1000000) {
- avctx->time_base.num = 1;
- avctx->time_base.den = 60;
- }
-
s->frame = av_frame_alloc();
if (!s->frame)
return AVERROR(ENOMEM);
diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index 34e67a649b..aba20859df 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -434,11 +434,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
#endif
ret = pkt->size;
-#if FF_API_AVCTX_TIMEBASE
- if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
- avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
-
/* do not stop draining when actual_got_frame != 0 or ret < 0 */
/* got_frame == 0 but actual_got_frame != 0 when frame is discarded */
if (avci->draining && !actual_got_frame) {
diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c
index 3ed23fb9ca..46134a1c48 100644
--- a/libavcodec/h264_parser.c
+++ b/libavcodec/h264_parser.c
@@ -593,6 +593,7 @@ static int h264_parse(AVCodecParserContext *s,
{
H264ParseContext *p = s->priv_data;
ParseContext *pc = &p->pc;
+ AVRational time_base = { 0, 1 };
int next;
if (!p->got_first) {
@@ -624,7 +625,7 @@ static int h264_parse(AVCodecParserContext *s,
parse_nal_units(s, avctx, buf, buf_size);
if (avctx->framerate.num)
- avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
+ time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
if (p->sei.picture_timing.cpb_removal_delay >= 0) {
s->dts_sync_point = p->sei.buffering_period.present;
s->dts_ref_dts_delta = p->sei.picture_timing.cpb_removal_delay;
@@ -640,9 +641,9 @@ static int h264_parse(AVCodecParserContext *s,
}
if (s->dts_sync_point >= 0) {
- int64_t den = avctx->time_base.den * (int64_t)avctx->pkt_timebase.num;
+ int64_t den = time_base.den * (int64_t)avctx->pkt_timebase.num;
if (den > 0) {
- int64_t num = avctx->time_base.num * (int64_t)avctx->pkt_timebase.den;
+ int64_t num = time_base.num * (int64_t)avctx->pkt_timebase.den;
if (s->dts != AV_NOPTS_VALUE) {
// got DTS from the stream, update reference timestamp
p->reference_dts = s->dts - av_rescale(s->dts_ref_dts_delta, num, den);
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 9f7b3782e8..2d691731c5 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -382,12 +382,6 @@ static av_cold int h264_decode_init(AVCodecContext *avctx)
return AVERROR_UNKNOWN;
}
- if (avctx->ticks_per_frame == 1) {
- if(h->avctx->time_base.den < INT_MAX/2) {
- h->avctx->time_base.den *= 2;
- } else
- h->avctx->time_base.num /= 2;
- }
avctx->ticks_per_frame = 2;
if (!avctx->internal->is_copy) {
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index f33911e1a8..b2be55af4a 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -436,7 +436,7 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
/* test interlaced mode */
if (s->first_picture &&
- (s->multiscope != 2 || s->avctx->time_base.den >= 25 * s->avctx->time_base.num) &&
+ (s->multiscope != 2 || s->avctx->pkt_timebase.den >= 25 * s->avctx->pkt_timebase.num) &&
s->orig_height != 0 &&
s->height < ((s->orig_height * 3) / 4)) {
s->interlaced = 1;
diff --git a/libavcodec/mpeg4video_parser.c b/libavcodec/mpeg4video_parser.c
index e32a93d296..3beb5f6dae 100644
--- a/libavcodec/mpeg4video_parser.c
+++ b/libavcodec/mpeg4video_parser.c
@@ -114,11 +114,11 @@ static int mpeg4_decode_header(AVCodecParserContext *s1, AVCodecContext *avctx,
if (ret < 0)
return ret;
}
- if((s1->flags & PARSER_FLAG_USE_CODEC_TS) && s->avctx->time_base.den>0 && ret>=0){
+ if((s1->flags & PARSER_FLAG_USE_CODEC_TS) && s->avctx->framerate.num>0 && ret>=0){
av_assert1(s1->pts == AV_NOPTS_VALUE);
av_assert1(s1->dts == AV_NOPTS_VALUE);
- s1->pts = av_rescale_q(s->time, (AVRational){1, s->avctx->time_base.den}, (AVRational){1, 1200000});
+ s1->pts = av_rescale_q(s->time, (AVRational){1, s->avctx->framerate.num}, (AVRational){1, 1200000});
}
s1->pict_type = s->pict_type;
diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 0a100d2064..f96b6a3117 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -2648,8 +2648,6 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
else
s->avctx->framerate.den = 1;
- s->avctx->time_base = av_inv_q(av_mul_q(s->avctx->framerate, (AVRational){s->avctx->ticks_per_frame, 1}));
-
ctx->t_frame = 0;
if (ctx->shape != BIN_ONLY_SHAPE) {
@@ -3145,7 +3143,6 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb,
"time_increment_bits set to %d bits, based on bitstream analysis\n", ctx->time_increment_bits);
if (s->avctx->framerate.num && 4*s->avctx->framerate.num < 1<<ctx->time_increment_bits) {
s->avctx->framerate.num = 1<<ctx->time_increment_bits;
- s->avctx->time_base = av_inv_q(av_mul_q(s->avctx->framerate, (AVRational){s->avctx->ticks_per_frame, 1}));
}
}
diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c
index ac6efb6909..57bc1f706c 100644
--- a/libavcodec/mpegvideo_parser.c
+++ b/libavcodec/mpegvideo_parser.c
@@ -241,11 +241,6 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
s->coded_width = FFALIGN(pc->width, 16);
s->coded_height = FFALIGN(pc->height, 16);
}
-
-#if FF_API_AVCTX_TIMEBASE
- if (avctx->framerate.num)
- avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
-#endif
}
static int mpegvideo_parse(AVCodecParserContext *s,
diff --git a/libavcodec/vc1_parser.c b/libavcodec/vc1_parser.c
index a459a2aa7d..4167215fb1 100644
--- a/libavcodec/vc1_parser.c
+++ b/libavcodec/vc1_parser.c
@@ -112,8 +112,6 @@ static void vc1_extract_header(AVCodecParserContext *s, AVCodecContext *avctx,
break;
}
- if (avctx->framerate.num)
- avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
s->format = vpc->v.chromaformat == 1 ? AV_PIX_FMT_YUV420P
: AV_PIX_FMT_NONE;
if (avctx->width && avctx->height) {
diff --git a/libavcodec/version_major.h b/libavcodec/version_major.h
index 84560bcaba..573cd855ed 100644
--- a/libavcodec/version_major.h
+++ b/libavcodec/version_major.h
@@ -38,7 +38,6 @@
*/
#define FF_API_INIT_PACKET (LIBAVCODEC_VERSION_MAJOR < 60)
-#define FF_API_AVCTX_TIMEBASE (LIBAVCODEC_VERSION_MAJOR < 60)
#define FF_API_FLAG_TRUNCATED (LIBAVCODEC_VERSION_MAJOR < 60)
#define FF_API_SUB_TEXT_FORMAT (LIBAVCODEC_VERSION_MAJOR < 60)
#define FF_API_IDCT_NONE (LIBAVCODEC_VERSION_MAJOR < 60)
diff --git a/libavformat/avformat.c b/libavformat/avformat.c
index 88ff46a574..fe7b068f4a 100644
--- a/libavformat/avformat.c
+++ b/libavformat/avformat.c
@@ -703,6 +703,10 @@ int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt,
{
const AVCodecContext *const dec_ctx = cffstream(ist)->avctx;
AVCodecContext *const enc_ctx = ffstream(ost)->avctx;
+ AVRational dec_ctx_tb = dec_ctx->framerate.num ? av_inv_q(av_mul_q(dec_ctx->framerate,
+ (AVRational){dec_ctx->ticks_per_frame, 1}))
+ : (ist->codecpar->codec_type == AVMEDIA_TYPE_AUDIO ? (AVRational){0, 1}
+ : ist->time_base);
enc_ctx->time_base = ist->time_base;
/*
@@ -715,38 +719,41 @@ int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt,
if (copy_tb == AVFMT_TBCF_AUTO && ist->r_frame_rate.num
&& av_q2d(ist->r_frame_rate) >= av_q2d(ist->avg_frame_rate)
&& 0.5/av_q2d(ist->r_frame_rate) > av_q2d(ist->time_base)
- && 0.5/av_q2d(ist->r_frame_rate) > av_q2d(dec_ctx->time_base)
- && av_q2d(ist->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500
+ && 0.5/av_q2d(ist->r_frame_rate) > av_q2d(dec_ctx_tb)
+ && av_q2d(ist->time_base) < 1.0/500 && av_q2d(dec_ctx_tb) < 1.0/500
|| copy_tb == AVFMT_TBCF_R_FRAMERATE) {
enc_ctx->time_base.num = ist->r_frame_rate.den;
enc_ctx->time_base.den = 2*ist->r_frame_rate.num;
enc_ctx->ticks_per_frame = 2;
} else
#endif
- if (copy_tb == AVFMT_TBCF_AUTO && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->time_base)
+ if (copy_tb == AVFMT_TBCF_AUTO && dec_ctx->framerate.num &&
+ av_q2d(av_inv_q(dec_ctx->framerate)) > 2*av_q2d(ist->time_base)
&& av_q2d(ist->time_base) < 1.0/500
- || copy_tb == AVFMT_TBCF_DECODER) {
- enc_ctx->time_base = dec_ctx->time_base;
+ || (copy_tb == AVFMT_TBCF_DECODER &&
+ (dec_ctx->framerate.num || ist->codecpar->codec_type == AVMEDIA_TYPE_AUDIO))) {
+ enc_ctx->time_base = dec_ctx_tb;
enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
enc_ctx->time_base.den *= 2;
enc_ctx->ticks_per_frame = 2;
}
} else if (!(ofmt->flags & AVFMT_VARIABLE_FPS)
&& !av_match_name(ofmt->name, "mov,mp4,3gp,3g2,psp,ipod,ismv,f4v")) {
- if (copy_tb == AVFMT_TBCF_AUTO && dec_ctx->time_base.den
- && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->time_base)
+ if (copy_tb == AVFMT_TBCF_AUTO && dec_ctx->framerate.num
+ && av_q2d(av_inv_q(dec_ctx->framerate)) > av_q2d(ist->time_base)
&& av_q2d(ist->time_base) < 1.0/500
- || copy_tb == AVFMT_TBCF_DECODER) {
- enc_ctx->time_base = dec_ctx->time_base;
+ || (copy_tb == AVFMT_TBCF_DECODER &&
+ (dec_ctx->framerate.num || ist->codecpar->codec_type == AVMEDIA_TYPE_AUDIO))) {
+ enc_ctx->time_base = dec_ctx_tb;
enc_ctx->time_base.num *= dec_ctx->ticks_per_frame;
}
}
if ((enc_ctx->codec_tag == AV_RL32("tmcd") || ost->codecpar->codec_tag == AV_RL32("tmcd"))
- && dec_ctx->time_base.num < dec_ctx->time_base.den
- && dec_ctx->time_base.num > 0
- && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) {
- enc_ctx->time_base = dec_ctx->time_base;
+ && dec_ctx_tb.num < dec_ctx_tb.den
+ && dec_ctx_tb.num > 0
+ && 121LL*dec_ctx_tb.num > dec_ctx_tb.den) {
+ enc_ctx->time_base = dec_ctx_tb;
}
av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
diff --git a/libavformat/demux.c b/libavformat/demux.c
index ba2991750b..b19ab86d08 100644
--- a/libavformat/demux.c
+++ b/libavformat/demux.c
@@ -2156,10 +2156,19 @@ static int get_std_framerate(int i)
* Old DivX and Xvid often have nonsense timebases like 1fps or 2fps.
* MPEG-2 commonly misuses field repeat flags to store different framerates.
* And there are "variable" fps files this needs to detect as well. */
-static int tb_unreliable(AVCodecContext *c)
+static int tb_unreliable(AVFormatContext *ic, AVStream *st)
{
- if (c->time_base.den >= 101LL * c->time_base.num ||
- c->time_base.den < 5LL * c->time_base.num ||
+ FFStream *const sti = ffstream(st);
+ AVCodecContext *c = sti->avctx;
+ AVRational time_base = c->framerate.num ? av_inv_q(av_mul_q(c->framerate,
+ (AVRational){c->ticks_per_frame, 1}))
+ /* NOHEADER check added to not break existing behavior */
+ : (((ic->ctx_flags & AVFMTCTX_NOHEADER) ||
+ st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ? (AVRational){0, 1}
+ : st->time_base);
+
+ if (time_base.den >= 101LL * time_base.num ||
+ time_base.den < 5LL * time_base.num ||
// c->codec_tag == AV_RL32("DIVX") ||
// c->codec_tag == AV_RL32("XVID") ||
c->codec_tag == AV_RL32("mp4v") ||
@@ -2243,11 +2252,11 @@ void ff_rfps_calculate(AVFormatContext *ic)
// the check for tb_unreliable() is not completely correct, since this is not about handling
// an unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
// ipmovie.c produces.
- if (tb_unreliable(sti->avctx) && sti->info->duration_count > 15 && sti->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num &&
+ if (tb_unreliable(ic, st) && sti->info->duration_count > 15 && sti->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num &&
sti->info->duration_gcd < INT64_MAX / st->time_base.num)
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, st->time_base.den, st->time_base.num * sti->info->duration_gcd, INT_MAX);
if (sti->info->duration_count > 1 && !st->r_frame_rate.num
- && tb_unreliable(sti->avctx)) {
+ && tb_unreliable(ic, st)) {
int num = 0;
double best_error = 0.01;
AVRational ref_rate = st->r_frame_rate.num ? st->r_frame_rate : av_inv_q(st->time_base);
@@ -2459,14 +2468,6 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
FFStream *const sti = ffstream(st);
AVCodecContext *const avctx = sti->avctx;
- if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
- st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
-/* if (!st->time_base.num)
- st->time_base = */
- if (!avctx->time_base.num)
- avctx->time_base = st->time_base;
- }
-
/* check if the caller has overridden the codec id */
// only for the split stuff
if (!sti->parser && !(ic->flags & AVFMT_FLAG_NOPARSE) && sti->request_probe <= 0) {
@@ -2544,7 +2545,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
* the correct fps. */
if (av_q2d(st->time_base) > 0.0005)
fps_analyze_framecount *= 2;
- if (!tb_unreliable(sti->avctx))
+ if (!tb_unreliable(ic, st))
fps_analyze_framecount = 0;
if (ic->fps_probe_size >= 0)
fps_analyze_framecount = ic->fps_probe_size;
@@ -2857,12 +2858,16 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
best_fps, 12 * 1001, INT_MAX);
}
-
if (!st->r_frame_rate.num) {
- if ( avctx->time_base.den * (int64_t) st->time_base.num
- <= avctx->time_base.num * (uint64_t)avctx->ticks_per_frame * st->time_base.den) {
+ AVRational time_base = avctx->framerate.num ? av_inv_q(av_mul_q(avctx->framerate,
+ (AVRational){avctx->ticks_per_frame, 1}))
+ /* NOHEADER check added to not break existing behavior */
+ : ((ic->ctx_flags & AVFMTCTX_NOHEADER) ? (AVRational){0, 1}
+ : st->time_base);
+ if ( time_base.den * (int64_t) st->time_base.num
+ <= time_base.num * (uint64_t)avctx->ticks_per_frame * st->time_base.den) {
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
- avctx->time_base.den, (int64_t)avctx->time_base.num * avctx->ticks_per_frame, INT_MAX);
+ time_base.den, (int64_t)time_base.num * avctx->ticks_per_frame, INT_MAX);
} else {
st->r_frame_rate.num = st->time_base.den;
st->r_frame_rate.den = st->time_base.num;
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