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mpeg12enc: add drop_frame_timecode private option.

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Deprecate CODEC_FLAG2_DROP_FRAME_TIMECODE
This commit is contained in:
Anton Khirnov 2011-08-27 08:34:05 +02:00
parent 297d9cb3dc
commit 2c5e1efc09
4 changed files with 14 additions and 3 deletions
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2
libavcodec/avcodec.h
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@ -620,7 +620,9 @@ typedef struct RcOverride{
#define CODEC_FLAG2_INTRA_VLC 0x00000800 ///< Use MPEG-2 intra VLC table.
#endif
#define CODEC_FLAG2_MEMC_ONLY 0x00001000 ///< Only do ME/MC (I frames -> ref, P frame -> ME+MC).
#if FF_API_MPEGVIDEO_GLOBAL_OPTS
#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format.
#endif
#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping
#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer.

12
libavcodec/mpeg12enc.c
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@ -142,6 +142,11 @@ static av_cold int encode_init(AVCodecContext *avctx)
if(MPV_encode_init(avctx) < 0)
return -1;
#if FF_API_MPEGVIDEO_GLOBAL_OPTS
if (avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE)
s->drop_frame_timecode = 1;
#endif
if(find_frame_rate_index(s) < 0){
if(s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n", avctx->time_base.den, avctx->time_base.num);
@ -174,7 +179,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
}
}
if((avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) && s->frame_rate_index != 4){
if (s->drop_frame_timecode && s->frame_rate_index != 4) {
av_log(avctx, AV_LOG_ERROR, "Drop frame time code only allowed with 1001/30000 fps\n");
return -1;
}
@ -285,14 +290,14 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
}
put_header(s, GOP_START_CODE);
put_bits(&s->pb, 1, !!(s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE)); /* drop frame flag */
put_bits(&s->pb, 1, s->drop_frame_timecode); /* drop frame flag */
/* time code : we must convert from the real frame rate to a
fake mpeg frame rate in case of low frame rate */
fps = (framerate.num + framerate.den/2)/ framerate.den;
time_code = s->current_picture_ptr->f.coded_picture_number + s->avctx->timecode_frame_start;
s->gop_picture_number = s->current_picture_ptr->f.coded_picture_number;
if (s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) {
if (s->drop_frame_timecode) {
/* only works for NTSC 29.97 */
int d = time_code / 17982;
int m = time_code % 17982;
@ -931,6 +936,7 @@ static void mpeg1_encode_block(MpegEncContext *s,
#define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
static const AVOption options[] = {
{ "intra_vlc", "Use MPEG-2 intra VLC table.", OFFSET(intra_vlc_format), FF_OPT_TYPE_INT, { 0 }, 0, 1, VE },
{ "drop_frame_timecode", "Timecode is in drop frame format.", OFFSET(drop_frame_timecode), FF_OPT_TYPE_INT, { 0 }, 0, 1, VE},
{ NULL },
};

1
libavcodec/mpegvideo.h
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@ -644,6 +644,7 @@ typedef struct MpegEncContext {
int interlaced_dct;
int first_slice;
int first_field; ///< is 1 for the first field of a field picture 0 otherwise
int drop_frame_timecode; ///< timecode is in drop frame format.
/* RTP specific */
int rtp_mode;

2
libavcodec/options.c
View File

@ -421,7 +421,9 @@ static const AVOption options[]={
{"max_partition_order", "deprecated, use flac-specific options", OFFSET(max_partition_order), FF_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, A|E},
#endif
{"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), FF_OPT_TYPE_INT64, {.dbl = 0 }, 0, INT64_MAX, V|E},
#if FF_API_MPEGVIDEO_GLOBAL_OPTS
{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_DROP_FRAME_TIMECODE }, INT_MIN, INT_MAX, V|E, "flags2"},
#endif
{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_NON_LINEAR_QUANT }, INT_MIN, INT_MAX, V|E, "flags2"},
#if FF_API_REQUEST_CHANNELS
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D},