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avcodec/mpeg12enc: Move options-related fields to MPEG12EncContext 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-12-22 20:25:13 +01:00
parent 4989ad4c76
commit f899e3b51b
3 changed files with 36 additions and 32 deletions
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1
libavcodec/mpeg12dec.c
View File

@ -33,6 +33,7 @@
#include "libavutil/internal.h"
#include "libavutil/mem_internal.h"
#include "libavutil/stereo3d.h"
#include "libavutil/timecode.h"
#include "libavutil/video_enc_params.h"
#include "avcodec.h"

58
libavcodec/mpeg12enc.c
View File

@ -65,6 +65,16 @@ static uint32_t mpeg1_chr_dc_uni[512];
typedef struct MPEG12EncContext {
MpegEncContext mpeg;
AVRational frame_rate_ext;
int64_t timecode_frame_start; ///< GOP timecode frame start number, in non drop frame format
AVTimecode tc; ///< timecode context
char *tc_opt_str; ///< timecode option string
int drop_frame_timecode; ///< timecode is in drop frame format.
int scan_offset; ///< reserve space for SVCD scan offset user data.
int a53_cc;
int seq_disp_ext;
int video_format;
} MPEG12EncContext;
#define A53_MAX_CC_COUNT 0x1f
@ -218,24 +228,24 @@ static av_cold int encode_init(AVCodecContext *avctx)
}
}
s->drop_frame_timecode = s->drop_frame_timecode || !!(avctx->flags2 & AV_CODEC_FLAG2_DROP_FRAME_TIMECODE);
if (s->drop_frame_timecode)
s->tc.flags |= AV_TIMECODE_FLAG_DROPFRAME;
if (s->drop_frame_timecode && s->frame_rate_index != 4) {
mpeg12->drop_frame_timecode = mpeg12->drop_frame_timecode || !!(avctx->flags2 & AV_CODEC_FLAG2_DROP_FRAME_TIMECODE);
if (mpeg12->drop_frame_timecode)
mpeg12->tc.flags |= AV_TIMECODE_FLAG_DROPFRAME;
if (mpeg12->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 AVERROR(EINVAL);
}
if (s->tc_opt_str) {
if (mpeg12->tc_opt_str) {
AVRational rate = ff_mpeg12_frame_rate_tab[s->frame_rate_index];
int ret = av_timecode_init_from_string(&s->tc, rate, s->tc_opt_str, s);
int ret = av_timecode_init_from_string(&mpeg12->tc, rate, mpeg12->tc_opt_str, s);
if (ret < 0)
return ret;
s->drop_frame_timecode = !!(s->tc.flags & AV_TIMECODE_FLAG_DROPFRAME);
s->timecode_frame_start = s->tc.start;
mpeg12->drop_frame_timecode = !!(mpeg12->tc.flags & AV_TIMECODE_FLAG_DROPFRAME);
mpeg12->timecode_frame_start = mpeg12->tc.start;
} else {
s->timecode_frame_start = 0; // default is -1
mpeg12->timecode_frame_start = 0; // default is -1
}
return 0;
@ -364,12 +374,13 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
s->avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
s->avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
s->avctx->colorspace != AVCOL_SPC_UNSPECIFIED ||
s->video_format != VIDEO_FORMAT_UNSPECIFIED);
mpeg12->video_format != VIDEO_FORMAT_UNSPECIFIED);
if (s->seq_disp_ext == 1 || (s->seq_disp_ext == -1 && use_seq_disp_ext)) {
if (mpeg12->seq_disp_ext == 1 ||
(mpeg12->seq_disp_ext == -1 && use_seq_disp_ext)) {
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 2); // sequence display extension
put_bits(&s->pb, 3, s->video_format); // video_format
put_bits(&s->pb, 3, mpeg12->video_format); // video_format
put_bits(&s->pb, 1, 1); // colour_description
put_bits(&s->pb, 8, s->avctx->color_primaries); // colour_primaries
put_bits(&s->pb, 8, s->avctx->color_trc); // transfer_characteristics
@ -382,17 +393,17 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
}
put_header(s, GOP_START_CODE);
put_bits(&s->pb, 1, s->drop_frame_timecode); // drop frame flag
put_bits(&s->pb, 1, mpeg12->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->timecode_frame_start;
mpeg12->timecode_frame_start;
s->gop_picture_number = s->current_picture_ptr->f->coded_picture_number;
av_assert0(s->drop_frame_timecode == !!(s->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
if (s->drop_frame_timecode)
av_assert0(mpeg12->drop_frame_timecode == !!(mpeg12->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
if (mpeg12->drop_frame_timecode)
time_code = av_timecode_adjust_ntsc_framenum2(time_code, fps);
put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24));
@ -436,6 +447,7 @@ void ff_mpeg1_encode_slice_header(MpegEncContext *s)
void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
{
MPEG12EncContext *const mpeg12 = (MPEG12EncContext*)s;
AVFrameSideData *side_data;
mpeg1_encode_sequence_header(s);
@ -513,7 +525,7 @@ void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
put_bits(&s->pb, 1, s->progressive_frame);
put_bits(&s->pb, 1, 0); /* composite_display_flag */
}
if (s->scan_offset) {
if (mpeg12->scan_offset) {
int i;
put_header(s, USER_START_CODE);
@ -559,7 +571,7 @@ void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
}
}
if (CONFIG_MPEG2VIDEO_ENCODER && s->a53_cc) {
if (CONFIG_MPEG2VIDEO_ENCODER && mpeg12->a53_cc) {
side_data = av_frame_get_side_data(s->current_picture_ptr->f,
AV_FRAME_DATA_A53_CC);
if (side_data) {
@ -1138,7 +1150,7 @@ av_cold void ff_mpeg1_encode_init(MpegEncContext *s)
ff_thread_once(&init_static_once, mpeg12_encode_init_static);
}
#define OFFSET(x) offsetof(MpegEncContext, x)
#define OFFSET(x) offsetof(MPEG12EncContext, x)
#define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
#define COMMON_OPTS \
{ "gop_timecode", "MPEG GOP Timecode in hh:mm:ss[:;.]ff format. Overrides timecode_frame_start.", \
@ -1165,9 +1177,9 @@ static const AVOption mpeg1_options[] = {
static const AVOption mpeg2_options[] = {
COMMON_OPTS
{ "intra_vlc", "Use MPEG-2 intra VLC table.",
OFFSET(intra_vlc_format), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "non_linear_quant", "Use nonlinear quantizer.", OFFSET(q_scale_type), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "alternate_scan", "Enable alternate scantable.", OFFSET(alternate_scan), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
FF_MPV_OFFSET(intra_vlc_format), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "non_linear_quant", "Use nonlinear quantizer.", FF_MPV_OFFSET(q_scale_type), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "alternate_scan", "Enable alternate scantable.", FF_MPV_OFFSET(alternate_scan), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
{ "a53cc", "Use A53 Closed Captions (if available)", OFFSET(a53_cc), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
{ "seq_disp_ext", "Write sequence_display_extension blocks.", OFFSET(seq_disp_ext), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE, "seq_disp_ext" },
{ "auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, VE, "seq_disp_ext" },
@ -1188,7 +1200,7 @@ static const AVOption mpeg2_options[] = {
#undef LEVEL
FF_MPV_COMMON_OPTS
#if FF_API_MPEGVIDEO_OPTS
{ "mpeg_quant", "Deprecated, does nothing", OFFSET(mpeg_quant),
{ "mpeg_quant", "Deprecated, does nothing", FF_MPV_OFFSET(mpeg_quant),
AV_OPT_TYPE_INT, {.i64 = 1 }, 0, 1, VE | AV_OPT_FLAG_DEPRECATED },
FF_MPV_DEPRECATED_MATRIX_OPT
#endif

9
libavcodec/mpegvideo.h
View File

@ -58,7 +58,6 @@
#include "videodsp.h"
#include "libavutil/opt.h"
#include "libavutil/timecode.h"
#define MAX_THREADS 32
@ -443,7 +442,6 @@ typedef struct MpegEncContext {
/* MPEG-2-specific - I wished not to have to support this mess. */
int progressive_sequence;
int mpeg_f_code[2][2];
int a53_cc;
// picture structure defines are loaded from mpegutils.h
int picture_structure;
@ -457,8 +455,6 @@ typedef struct MpegEncContext {
int brd_scale;
int intra_vlc_format;
int alternate_scan;
int seq_disp_ext;
int video_format;
#define VIDEO_FORMAT_COMPONENT 0
#define VIDEO_FORMAT_PAL 1
#define VIDEO_FORMAT_NTSC 2
@ -478,16 +474,11 @@ typedef struct MpegEncContext {
int full_pel[2];
int interlaced_dct;
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.
int scan_offset; ///< reserve space for SVCD scan offset user data.
/* RTP specific */
int rtp_mode;
int rtp_payload_size;
char *tc_opt_str; ///< timecode option string
AVTimecode tc; ///< timecode context
uint8_t *ptr_lastgob;
int swap_uv; //vcr2 codec is an MPEG-2 variant with U and V swapped
int pack_pblocks; //xvmc needs to keep blocks without gaps.