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Code Issues Releases Activity

avcodec/hevc: Simplify skipped_bytes_pos code further

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-07-13 00:52:18 +02:00
parent ad92410d90
commit 99558270ed
4 changed files with 25 additions and 30 deletions
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8
libavcodec/hevc.c
View File

@ -2455,7 +2455,7 @@ static int hls_slice_data_wpp(HEVCContext *s, const HEVCNAL *nal)
offset = (lc->gb.index >> 3);
for (j = 0, cmpt = 0, startheader = offset + s->sh.entry_point_offset[0]; j < nal->skipped_bytes; j++) {
if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
if (nal->skipped_bytes_pos[j] >= offset && nal->skipped_bytes_pos[j] < startheader) {
startheader--;
cmpt++;
}
@ -2465,7 +2465,7 @@ static int hls_slice_data_wpp(HEVCContext *s, const HEVCNAL *nal)
offset += (s->sh.entry_point_offset[i - 1] - cmpt);
for (j = 0, cmpt = 0, startheader = offset
+ s->sh.entry_point_offset[i]; j < nal->skipped_bytes; j++) {
if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
if (nal->skipped_bytes_pos[j] >= offset && nal->skipped_bytes_pos[j] < startheader) {
startheader--;
cmpt++;
}
@ -2781,8 +2781,6 @@ static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
/* decode the NAL units */
for (i = 0; i < s->pkt.nb_nals; i++) {
s->skipped_bytes_pos = s->pkt.nals[i].skipped_bytes_pos_nal;
ret = decode_nal_unit(s, &s->pkt.nals[i]);
if (ret < 0) {
av_log(s->avctx, AV_LOG_WARNING,
@ -3011,7 +3009,7 @@ static av_cold int hevc_decode_free(AVCodecContext *avctx)
for (i = 0; i < s->pkt.nals_allocated; i++) {
av_freep(&s->pkt.nals[i].rbsp_buffer);
av_freep(&s->pkt.nals[i].skipped_bytes_pos_nal);
av_freep(&s->pkt.nals[i].skipped_bytes_pos);
}
av_freep(&s->pkt.nals);
s->pkt.nals_allocated = 0;

6
libavcodec/hevc.h
View File

@ -761,8 +761,8 @@ typedef struct HEVCNAL {
int temporal_id;
int skipped_bytes;
int skipped_bytes_pos_size_nal;
int *skipped_bytes_pos_nal;
int skipped_bytes_pos_size;
int *skipped_bytes_pos;
} HEVCNAL;
/* an input packet split into unescaped NAL units */
@ -901,8 +901,6 @@ typedef struct HEVCContext {
int enable_parallel_tiles;
int wpp_err;
int *skipped_bytes_pos;
int skipped_bytes_pos_size;
const uint8_t *data;

35
libavcodec/hevc_parse.c
View File

@ -110,18 +110,21 @@ int ff_hevc_extract_rbsp(HEVCContext *s, const uint8_t *src, int length,
dst[di++] = 0;
si += 3;
if (s) {
nal->skipped_bytes++;
if (s->skipped_bytes_pos_size < nal->skipped_bytes) {
s->skipped_bytes_pos_size *= 2;
av_reallocp_array(&s->skipped_bytes_pos,
s->skipped_bytes_pos_size,
sizeof(*s->skipped_bytes_pos));
if (!s->skipped_bytes_pos)
return AVERROR(ENOMEM);
if (s && nal->skipped_bytes_pos) {
nal->skipped_bytes++;
if (nal->skipped_bytes_pos_size < nal->skipped_bytes) {
nal->skipped_bytes_pos_size *= 2;
av_assert0(nal->skipped_bytes_pos_size >= nal->skipped_bytes);
av_reallocp_array(&nal->skipped_bytes_pos,
nal->skipped_bytes_pos_size,
sizeof(*nal->skipped_bytes_pos));
if (!nal->skipped_bytes_pos) {
nal->skipped_bytes_pos_size = 0;
return AVERROR(ENOMEM);
}
if (s->skipped_bytes_pos)
s->skipped_bytes_pos[nal->skipped_bytes-1] = di - 1;
}
if (nal->skipped_bytes_pos)
nal->skipped_bytes_pos[nal->skipped_bytes-1] = di - 1;
}
continue;
} else // next start code
@ -219,23 +222,19 @@ int ff_hevc_split_packet(HEVCContext *s, HEVCPacket *pkt, const uint8_t *buf, in
(new_size - pkt->nals_allocated) * sizeof(*pkt->nals));
nal = &pkt->nals[pkt->nb_nals];
nal->skipped_bytes_pos_size_nal = 1024; // initial buffer size
nal->skipped_bytes_pos_nal = av_malloc_array(nal->skipped_bytes_pos_size_nal, sizeof(*s->skipped_bytes_pos));
if (!nal->skipped_bytes_pos_nal)
nal->skipped_bytes_pos_size = 1024; // initial buffer size
nal->skipped_bytes_pos = av_malloc_array(nal->skipped_bytes_pos_size, sizeof(*nal->skipped_bytes_pos));
if (!nal->skipped_bytes_pos)
return AVERROR(ENOMEM);
pkt->nals_allocated = new_size;
}
nal = &pkt->nals[pkt->nb_nals];
s->skipped_bytes_pos_size = nal->skipped_bytes_pos_size_nal;
s->skipped_bytes_pos = nal->skipped_bytes_pos_nal;
consumed = ff_hevc_extract_rbsp(s, buf, extract_length, nal);
if (consumed < 0)
return consumed;
nal->skipped_bytes_pos_size_nal = s->skipped_bytes_pos_size;
nal->skipped_bytes_pos_nal = s->skipped_bytes_pos;
pkt->nb_nals++;
ret = init_get_bits8(&nal->gb, nal->data, nal->size);

6
libavcodec/hevc_parser.c
View File

@ -313,7 +313,6 @@ static int hevc_init(AVCodecParserContext *s)
h->HEVClc = av_mallocz(sizeof(HEVCLocalContext));
if (!h->HEVClc)
return AVERROR(ENOMEM);
h->skipped_bytes_pos_size = INT_MAX;
return 0;
}
@ -326,7 +325,6 @@ static void hevc_close(AVCodecParserContext *s)
HEVCParamSets *ps = &h->ps;
HEVCPacket *pkt = &h->pkt;
av_freep(&h->skipped_bytes_pos);
av_freep(&h->HEVClc);
av_freep(&pc->buffer);
@ -339,8 +337,10 @@ static void hevc_close(AVCodecParserContext *s)
ps->sps = NULL;
for (i = 0; i < pkt->nals_allocated; i++)
for (i = 0; i < pkt->nals_allocated; i++) {
av_freep(&pkt->nals[i].rbsp_buffer);
av_freep(&pkt->nals[i].skipped_bytes_pos);
}
av_freep(&pkt->nals);
pkt->nals_allocated = 0;
}