From: Limin Wang <lance.lmw...@gmail.com> --- libavcodec/internal.h | 3 ++- libavcodec/nvenc.c | 2 +- libavcodec/utils.c | 13 ++++++++++++- 3 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/libavcodec/internal.h b/libavcodec/internal.h index 0a1c0a1..4c34d7d 100644 --- a/libavcodec/internal.h +++ b/libavcodec/internal.h @@ -382,6 +382,7 @@ int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, * Check AVFrame for S12M timecode side data and allocate and fill TC SEI message with timecode info * * @param frame Raw frame to get S12M timecode side data from + * @param rate The frame rate * @param prefix_len Number of bytes to allocate before SEI message * @param data Pointer to a variable to store allocated memory * Upon return the variable will hold NULL on error or if frame has no S12M timecode info. @@ -390,7 +391,7 @@ int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, * @param sei_size Pointer to a variable to store generated SEI message length * @return Zero on success, negative error code on failure */ -int ff_alloc_timecode_sei(const AVFrame *frame, size_t prefix_len, +int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size); /** diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c index c6740c1..45a7b60 100644 --- a/libavcodec/nvenc.c +++ b/libavcodec/nvenc.c @@ -2218,7 +2218,7 @@ static int nvenc_send_frame(AVCodecContext *avctx, const AVFrame *frame) void *tc_data = NULL; size_t tc_size = 0; - if (ff_alloc_timecode_sei(frame, 0, (void**)&tc_data, &tc_size) < 0) { + if (ff_alloc_timecode_sei(frame, avctx->framerate, 0, (void**)&tc_data, &tc_size) < 0) { av_log(ctx, AV_LOG_ERROR, "Not enough memory for timecode sei, skipping\n"); } diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 2ece34f..51c4067 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -2254,7 +2254,7 @@ static unsigned bcd2uint(uint8_t bcd) return low + 10*high; } -int ff_alloc_timecode_sei(const AVFrame *frame, size_t prefix_len, +int ff_alloc_timecode_sei(const AVFrame *frame, AVRational rate, size_t prefix_len, void **data, size_t *sei_size) { AVFrameSideData *sd = NULL; @@ -2290,6 +2290,17 @@ int ff_alloc_timecode_sei(const AVFrame *frame, size_t prefix_len, unsigned ff = bcd2uint(tcsmpte>>24 & 0x3f); // 6-bit frames unsigned drop = tcsmpte & 1<<30 && !0; // 1-bit drop if not arbitrary bit + /* Calculate frame number of HEVC by SMPTE ST 12-1:2014 Sec 12.2 if rate > 30FPS */ + if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) { + unsigned pc; + ff *= 2; + if (av_cmp_q(rate, (AVRational) {50, 1}) == 0) + pc = !!(tcsmpte & 1 << 7); + else + pc = !!(tcsmpte & 1 << 23); + ff = (ff + pc) & 0x7f; + } + put_bits(&pb, 1, 1); // clock_timestamp_flag put_bits(&pb, 1, 1); // units_field_based_flag put_bits(&pb, 5, 0); // counting_type -- 2.9.4 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".