On Mon, Jun 29, 2020 at 04:53:21AM +0200, Andreas Rheinhardt wrote:
> lance.lmw...@gmail.com:
> > From: Limin Wang <lance.lmw...@gmail.com>
> >
> > Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
> > ---
> > doc/APIchanges | 3 +++
> > libavcodec/avpacket.c | 1 +
> > libavcodec/decode.c | 1 +
> > libavcodec/packet.h | 8 ++++++++
> > libavcodec/version.h | 2 +-
> > libavformat/dump.c | 22 ++++++++++++++++++++++
> > 6 files changed, 36 insertions(+), 1 deletion(-)
> >
> > diff --git a/doc/APIchanges b/doc/APIchanges
> > index 1d6cc36..7cad7fa 100644
> > --- a/doc/APIchanges
> > +++ b/doc/APIchanges
> > @@ -15,6 +15,9 @@ libavutil: 2017-10-21
> >
> > API changes, most recent first:
> >
> > +2020-06-xx - xxxxxxxxxx - lavc 58.94.100 - packet.h
> > + Add AV_PKT_DATA_S12M_TIMECODE.
> > +
> > 2020-06-12 - b09fb030c1 - lavu 56.55.100 - pixdesc.h
> > Add AV_PIX_FMT_X2RGB10.
> >
> > diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
> > index dce26cb..a4316a7 100644
> > --- a/libavcodec/avpacket.c
> > +++ b/libavcodec/avpacket.c
> > @@ -400,6 +400,7 @@ const char *av_packet_side_data_name(enum
> > AVPacketSideDataType type)
> > case AV_PKT_DATA_PRFT: return "Producer
> > Reference Time";
> > case AV_PKT_DATA_ICC_PROFILE: return "ICC Profile";
> > case AV_PKT_DATA_DOVI_CONF: return "DOVI
> > configuration record";
> > + case AV_PKT_DATA_S12M_TIMECODE: return "SMPTE 12-1
> > timecode";
> > }
> > return NULL;
> > }
> > diff --git a/libavcodec/decode.c b/libavcodec/decode.c
> > index a4e50c0..a2bf0cc 100644
> > --- a/libavcodec/decode.c
> > +++ b/libavcodec/decode.c
> > @@ -1699,6 +1699,7 @@ int ff_decode_frame_props(AVCodecContext *avctx,
> > AVFrame *frame)
> > { AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
> > AV_FRAME_DATA_CONTENT_LIGHT_LEVEL },
> > { AV_PKT_DATA_A53_CC, AV_FRAME_DATA_A53_CC },
> > { AV_PKT_DATA_ICC_PROFILE,
> > AV_FRAME_DATA_ICC_PROFILE },
> > + { AV_PKT_DATA_S12M_TIMECODE,
> > AV_FRAME_DATA_S12M_TIMECODE },
> > };
> >
> > if (pkt) {
> > diff --git a/libavcodec/packet.h b/libavcodec/packet.h
> > index 41485f4..72cb4f7 100644
> > --- a/libavcodec/packet.h
> > +++ b/libavcodec/packet.h
> > @@ -283,6 +283,14 @@ enum AVPacketSideDataType {
> > AV_PKT_DATA_DOVI_CONF,
> >
> > /**
> > + * Timecode which conforms to SMPTE ST 12-1. The data is an array of 4
> > uint32_t
> > + * where the first uint32_t describes how many (1-3) of the other
> > timecodes are used.
> > + * The timecode format is described in the
> > av_timecode_get_smpte_from_framenum()
> > + * function in libavutil/timecode.c.
>
> The format is documented in a C source file, not a public header? Sure
> about that?
For AV_PKT_DATA_S12M_TIMECODE use the same format with
AV_FRAME_DATA_S12M_TIMECODE, so I copy the
comments for AV_FRAME_DATA_S12M_TIMECODE, it's not my comments for it. I think
the format is described
in "SMPTE ST 12-2:2014" standard document, but it's not free for download.
What's your suggestion to change?
>
> > + */
> > + AV_PKT_DATA_S12M_TIMECODE,
> > +
> > + /**
> > * The number of side data types.
> > * This is not part of the public API/ABI in the sense that it may
> > * change when new side data types are added.
> > diff --git a/libavcodec/version.h b/libavcodec/version.h
> > index 0359302..482cc6d 100644
> > --- a/libavcodec/version.h
> > +++ b/libavcodec/version.h
> > @@ -28,7 +28,7 @@
> > #include "libavutil/version.h"
> >
> > #define LIBAVCODEC_VERSION_MAJOR 58
> > -#define LIBAVCODEC_VERSION_MINOR 93
> > +#define LIBAVCODEC_VERSION_MINOR 94
> > #define LIBAVCODEC_VERSION_MICRO 100
> >
> > #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
> > diff --git a/libavformat/dump.c b/libavformat/dump.c
> > index 117c681..c5f0bd6 100644
> > --- a/libavformat/dump.c
> > +++ b/libavformat/dump.c
> > @@ -34,6 +34,7 @@
> > #include "libavutil/replaygain.h"
> > #include "libavutil/spherical.h"
> > #include "libavutil/stereo3d.h"
> > +#include "libavutil/timecode.h"
> >
> > #include "avformat.h"
> >
> > @@ -402,6 +403,23 @@ static void dump_dovi_conf(void *ctx,
> > AVPacketSideData* sd)
> > dovi->dv_bl_signal_compatibility_id);
> > }
> >
> > +static void dump_s12m_timecode(void *ctx, AVPacketSideData* sd)
> > +{
> > + uint32_t *tc = (uint32_t*)sd->data;
> > + int m = tc[0] & 3;
> > +
> > + if (sd->size != sizeof(uint32_t) * 4) {
> > + av_log(ctx, AV_LOG_ERROR, "invalid data");
> > + return;
> > + }
> > +
> > + for (int j = 1; j <= m; j++) {
> > + char tcbuf[AV_TIMECODE_STR_SIZE];
> > + av_timecode_make_smpte_tc_string(tcbuf, tc[j], 0);
> > + av_log(ctx, AV_LOG_INFO, "timecode - %s%s", tcbuf, j != m ? ", " :
> > "");
> > + }
> > +}
> > +
> > static void dump_sidedata(void *ctx, AVStream *st, const char *indent)
> > {
> > int i;
> > @@ -468,6 +486,10 @@ static void dump_sidedata(void *ctx, AVStream *st,
> > const char *indent)
> > av_log(ctx, AV_LOG_INFO, "DOVI configuration record: ");
> > dump_dovi_conf(ctx, &sd);
> > break;
> > + case AV_PKT_DATA_S12M_TIMECODE:
> > + av_log(ctx, AV_LOG_INFO, "S12M timecode: ");
> > + dump_s12m_timecode(ctx, &sd);
> > + break;
> > default:
> > av_log(ctx, AV_LOG_INFO,
> > "unknown side data type %d (%d bytes)", sd.type,
> > sd.size);
> >
>
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--
Thanks,
Limin Wang
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