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avcodec/mpeg12enc: Reindent after the previous commit 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-01-25 13:17:32 +01:00
parent d3a2d06633
commit 5256658af5
1 changed files with 119 additions and 120 deletions
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239
libavcodec/mpeg12enc.c
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@ -263,7 +263,7 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
{
MPEG12EncContext *const mpeg12 = (MPEG12EncContext*)s;
unsigned int vbv_buffer_size, fps, v;
int i, constraint_parameter_flag;
int constraint_parameter_flag;
AVRational framerate = ff_mpeg12_frame_rate_tab[s->frame_rate_index];
uint64_t time_code;
int64_t best_aspect_error = INT64_MAX;
@ -276,146 +276,145 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
if (aspect_ratio.num == 0 || aspect_ratio.den == 0)
aspect_ratio = (AVRational){1,1}; // pixel aspect 1.1 (VGA)
/* MPEG-1 header repeated every GOP */
put_header(s, SEQ_START_CODE);
/* MPEG-1 header repeated every GOP */
put_header(s, SEQ_START_CODE);
put_sbits(&s->pb, 12, s->width & 0xFFF);
put_sbits(&s->pb, 12, s->height & 0xFFF);
put_sbits(&s->pb, 12, s->width & 0xFFF);
put_sbits(&s->pb, 12, s->height & 0xFFF);
for (i = 1; i < 15; i++) {
int64_t error = aspect_ratio.num * (1LL<<32) / aspect_ratio.den;
if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO || i <= 1)
error -= (1LL<<32) / ff_mpeg1_aspect[i];
else
error -= (1LL<<32)*ff_mpeg2_aspect[i].num * s->height / s->width / ff_mpeg2_aspect[i].den;
error = FFABS(error);
if (error - 2 <= best_aspect_error) {
best_aspect_error = error;
aspect_ratio_info = i;
}
}
put_bits(&s->pb, 4, aspect_ratio_info);
put_bits(&s->pb, 4, s->frame_rate_index);
if (s->avctx->rc_max_rate) {
v = (s->avctx->rc_max_rate + 399) / 400;
if (v > 0x3ffff && s->codec_id == AV_CODEC_ID_MPEG1VIDEO)
v = 0x3ffff;
} else {
v = 0x3FFFF;
}
if (s->avctx->rc_buffer_size)
vbv_buffer_size = s->avctx->rc_buffer_size;
for (int i = 1; i < 15; i++) {
int64_t error = aspect_ratio.num * (1LL<<32) / aspect_ratio.den;
if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO || i <= 1)
error -= (1LL<<32) / ff_mpeg1_aspect[i];
else
/* VBV calculation: Scaled so that a VCD has the proper
* VBV size of 40 kilobytes */
vbv_buffer_size = ((20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024;
vbv_buffer_size = (vbv_buffer_size + 16383) / 16384;
error -= (1LL<<32)*ff_mpeg2_aspect[i].num * s->height / s->width / ff_mpeg2_aspect[i].den;
put_sbits(&s->pb, 18, v);
put_bits(&s->pb, 1, 1); // marker
put_sbits(&s->pb, 10, vbv_buffer_size);
error = FFABS(error);
constraint_parameter_flag =
s->width <= 768 &&
s->height <= 576 &&
s->mb_width * s->mb_height <= 396 &&
s->mb_width * s->mb_height * framerate.num <= 396 * 25 * framerate.den &&
framerate.num <= framerate.den * 30 &&
s->avctx->me_range &&
s->avctx->me_range < 128 &&
vbv_buffer_size <= 20 &&
v <= 1856000 / 400 &&
s->codec_id == AV_CODEC_ID_MPEG1VIDEO;
if (error - 2 <= best_aspect_error) {
best_aspect_error = error;
aspect_ratio_info = i;
}
}
put_bits(&s->pb, 1, constraint_parameter_flag);
put_bits(&s->pb, 4, aspect_ratio_info);
put_bits(&s->pb, 4, s->frame_rate_index);
ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix);
ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix);
if (s->avctx->rc_max_rate) {
v = (s->avctx->rc_max_rate + 399) / 400;
if (v > 0x3ffff && s->codec_id == AV_CODEC_ID_MPEG1VIDEO)
v = 0x3ffff;
} else {
v = 0x3FFFF;
}
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
AVFrameSideData *side_data;
int width = s->width;
int height = s->height;
int use_seq_disp_ext;
if (s->avctx->rc_buffer_size)
vbv_buffer_size = s->avctx->rc_buffer_size;
else
/* VBV calculation: Scaled so that a VCD has the proper
* VBV size of 40 kilobytes */
vbv_buffer_size = ((20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024;
vbv_buffer_size = (vbv_buffer_size + 16383) / 16384;
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 1); // seq ext
put_sbits(&s->pb, 18, v);
put_bits(&s->pb, 1, 1); // marker
put_sbits(&s->pb, 10, vbv_buffer_size);
put_bits(&s->pb, 1, s->avctx->profile == FF_PROFILE_MPEG2_422); // escx 1 for 4:2:2 profile
constraint_parameter_flag =
s->width <= 768 &&
s->height <= 576 &&
s->mb_width * s->mb_height <= 396 &&
s->mb_width * s->mb_height * framerate.num <= 396 * 25 * framerate.den &&
framerate.num <= framerate.den * 30 &&
s->avctx->me_range &&
s->avctx->me_range < 128 &&
vbv_buffer_size <= 20 &&
v <= 1856000 / 400 &&
s->codec_id == AV_CODEC_ID_MPEG1VIDEO;
put_bits(&s->pb, 3, s->avctx->profile); // profile
put_bits(&s->pb, 4, s->avctx->level); // level
put_bits(&s->pb, 1, constraint_parameter_flag);
put_bits(&s->pb, 1, s->progressive_sequence);
put_bits(&s->pb, 2, s->chroma_format);
put_bits(&s->pb, 2, s->width >> 12);
put_bits(&s->pb, 2, s->height >> 12);
put_bits(&s->pb, 12, v >> 18); // bitrate ext
put_bits(&s->pb, 1, 1); // marker
put_bits(&s->pb, 8, vbv_buffer_size >> 10); // vbv buffer ext
put_bits(&s->pb, 1, s->low_delay);
put_bits(&s->pb, 2, mpeg12->frame_rate_ext.num-1); // frame_rate_ext_n
put_bits(&s->pb, 5, mpeg12->frame_rate_ext.den-1); // frame_rate_ext_d
ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix);
ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix);
side_data = av_frame_get_side_data(s->current_picture_ptr->f, AV_FRAME_DATA_PANSCAN);
if (side_data) {
AVPanScan *pan_scan = (AVPanScan *)side_data->data;
if (pan_scan->width && pan_scan->height) {
width = pan_scan->width >> 4;
height = pan_scan->height >> 4;
}
}
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
const AVFrameSideData *side_data;
int width = s->width;
int height = s->height;
int use_seq_disp_ext;
use_seq_disp_ext = (width != s->width ||
height != s->height ||
s->avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
s->avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
s->avctx->colorspace != AVCOL_SPC_UNSPECIFIED ||
mpeg12->video_format != VIDEO_FORMAT_UNSPECIFIED);
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 1); // seq 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, 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
put_bits(&s->pb, 8, s->avctx->colorspace); // matrix_coefficients
put_bits(&s->pb, 14, width); // display_horizontal_size
put_bits(&s->pb, 1, 1); // marker_bit
put_bits(&s->pb, 14, height); // display_vertical_size
put_bits(&s->pb, 3, 0); // remaining 3 bits are zero padding
put_bits(&s->pb, 1, s->avctx->profile == FF_PROFILE_MPEG2_422); // escx 1 for 4:2:2 profile
put_bits(&s->pb, 3, s->avctx->profile); // profile
put_bits(&s->pb, 4, s->avctx->level); // level
put_bits(&s->pb, 1, s->progressive_sequence);
put_bits(&s->pb, 2, s->chroma_format);
put_bits(&s->pb, 2, s->width >> 12);
put_bits(&s->pb, 2, s->height >> 12);
put_bits(&s->pb, 12, v >> 18); // bitrate ext
put_bits(&s->pb, 1, 1); // marker
put_bits(&s->pb, 8, vbv_buffer_size >> 10); // vbv buffer ext
put_bits(&s->pb, 1, s->low_delay);
put_bits(&s->pb, 2, mpeg12->frame_rate_ext.num-1); // frame_rate_ext_n
put_bits(&s->pb, 5, mpeg12->frame_rate_ext.den-1); // frame_rate_ext_d
side_data = av_frame_get_side_data(s->current_picture_ptr->f, AV_FRAME_DATA_PANSCAN);
if (side_data) {
const AVPanScan *pan_scan = (AVPanScan *)side_data->data;
if (pan_scan->width && pan_scan->height) {
width = pan_scan->width >> 4;
height = pan_scan->height >> 4;
}
}
put_header(s, GOP_START_CODE);
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 +
mpeg12->timecode_frame_start;
use_seq_disp_ext = (width != s->width ||
height != s->height ||
s->avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
s->avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
s->avctx->colorspace != AVCOL_SPC_UNSPECIFIED ||
mpeg12->video_format != VIDEO_FORMAT_UNSPECIFIED);
s->gop_picture_number = s->current_picture_ptr->f->coded_picture_number;
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, 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
put_bits(&s->pb, 8, s->avctx->colorspace); // matrix_coefficients
put_bits(&s->pb, 14, width); // display_horizontal_size
put_bits(&s->pb, 1, 1); // marker_bit
put_bits(&s->pb, 14, height); // display_vertical_size
put_bits(&s->pb, 3, 0); // remaining 3 bits are zero padding
}
}
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_header(s, GOP_START_CODE);
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 +
mpeg12->timecode_frame_start;
put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24));
put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60));
put_bits(&s->pb, 1, 1);
put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60));
put_bits(&s->pb, 6, (uint32_t)((time_code % fps)));
put_bits(&s->pb, 1, !!(s->avctx->flags & AV_CODEC_FLAG_CLOSED_GOP) || s->intra_only || !s->gop_picture_number);
put_bits(&s->pb, 1, 0); // broken link
s->gop_picture_number = s->current_picture_ptr->f->coded_picture_number;
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));
put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60));
put_bits(&s->pb, 1, 1);
put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60));
put_bits(&s->pb, 6, (uint32_t)((time_code % fps)));
put_bits(&s->pb, 1, !!(s->avctx->flags & AV_CODEC_FLAG_CLOSED_GOP) || s->intra_only || !s->gop_picture_number);
put_bits(&s->pb, 1, 0); // broken link
}
static inline void encode_mb_skip_run(MpegEncContext *s, int run)