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Code Issues Releases Activity

avcodec/mpegvideo: Move header_bits to MPVMainEncContext

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The header is always written by the main thread, so it is
not surprising that header_bits can be moved to MPVMainEncContext
as well.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2022-01-29 05:34:14 +01:00
parent b038c7af0c
commit 6b6b34df35
5 changed files with 12 additions and 8 deletions
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10
libavcodec/mjpegenc.c
View File

@ -119,8 +119,9 @@ void ff_mjpeg_amv_encode_picture_header(MpegEncContext *s)
*
* @param s The MpegEncContext.
*/
static void mjpeg_encode_picture_frame(MpegEncContext *s)
static void mjpeg_encode_picture_frame(MPVMainEncContext *const main)
{
MpegEncContext *const s = &main->s;
int nbits, code, table_id;
MJpegContext *m = s->mjpeg_ctx;
uint8_t *huff_size[4] = { m->huff_size_dc_luminance,
@ -134,7 +135,7 @@ static void mjpeg_encode_picture_frame(MpegEncContext *s)
size_t total_bits = 0;
size_t bytes_needed;
s->header_bits = get_bits_diff(s);
main->header_bits = get_bits_diff(s);
// Estimate the total size first
for (int i = 0; i < m->huff_ncode; i++) {
table_id = m->huff_buffer[i].table_id;
@ -240,6 +241,9 @@ int ff_mjpeg_encode_stuffing(MpegEncContext *s)
#if CONFIG_MJPEG_ENCODER
if (m->huffman == HUFFMAN_TABLE_OPTIMAL) {
/* HUFFMAN_TABLE_OPTIMAL is incompatible with slice threading,
* therefore the following cast is allowed. */
MPVMainEncContext *const main = (MPVMainEncContext*)s;
mjpeg_build_optimal_huffman(m);
@ -253,7 +257,7 @@ int ff_mjpeg_encode_stuffing(MpegEncContext *s)
s->intra_chroma_ac_vlc_last_length = m->uni_chroma_ac_vlc_len;
mjpeg_encode_picture_header(s);
mjpeg_encode_picture_frame(s);
mjpeg_encode_picture_frame(main);
}
#endif

1
libavcodec/mpegvideo.h
View File

@ -310,7 +310,6 @@ typedef struct MpegEncContext {
/* statistics, used for 2-pass encoding */
int mv_bits;
int header_bits;
int i_tex_bits;
int p_tex_bits;
int i_count;

6
libavcodec/mpegvideo_enc.c
View File

@ -1928,7 +1928,7 @@ vbv_retry:
frame_end(m);
if ((CONFIG_MJPEG_ENCODER || CONFIG_AMV_ENCODER) && s->out_format == FMT_MJPEG)
ff_mjpeg_encode_picture_trailer(&s->pb, s->header_bits);
ff_mjpeg_encode_picture_trailer(&s->pb, m->header_bits);
if (avctx->rc_buffer_size) {
RateControlContext *rcc = &m->rc_context;
@ -1976,7 +1976,7 @@ vbv_retry:
s->pict_type);
if (avctx->flags & AV_CODEC_FLAG_PASS1)
assert(put_bits_count(&s->pb) == s->header_bits + s->mv_bits +
assert(put_bits_count(&s->pb) == m->header_bits + s->mv_bits +
s->misc_bits + s->i_tex_bits +
s->p_tex_bits);
flush_put_bits(&s->pb);
@ -3933,7 +3933,7 @@ static int encode_picture(MPVMainEncContext *const m, const AVPacket *pkt)
av_assert0(0);
}
bits= put_bits_count(&s->pb);
s->header_bits= bits - s->last_bits;
m->header_bits = bits - s->last_bits;
for(i=1; i<context_count; i++){
update_duplicate_context_after_me(s->thread_context[i], s);

1
libavcodec/mpegvideoenc.h
View File

@ -77,6 +77,7 @@ typedef struct MPVMainEncContext {
/* bit rate control */
int64_t total_bits;
int frame_bits; ///< bits used for the current frame
int header_bits;
int stuffing_bits; ///< bits used for stuffing
int next_lambda; ///< next lambda used for retrying to encode a frame
int fixed_qscale; ///< fixed qscale if non zero

2
libavcodec/ratecontrol.c
View File

@ -54,7 +54,7 @@ void ff_write_pass1_stats(MPVMainEncContext *const m)
m->mc_mb_var_sum,
m->mb_var_sum,
s->i_count,
s->header_bits);
m->header_bits);
}
static AVRational get_fpsQ(AVCodecContext *avctx)