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h264: move rbsp_buffer into the per-slice context

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This commit is contained in:
Anton Khirnov 2015-01-17 22:28:46 +01:00
parent 582683b6ac
commit 3178f4d33f
4 changed files with 17 additions and 18 deletions
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22
libavcodec/h264.c
View File

@ -216,7 +216,8 @@ int ff_h264_check_intra_pred_mode(const H264Context *h, H264SliceContext *sl,
return mode;
}
const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl,
const uint8_t *src,
int *dst_length, int *consumed, int length)
{
int i, si, di;
@ -282,9 +283,9 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
return src;
}
av_fast_malloc(&h->rbsp_buffer, &h->rbsp_buffer_size,
av_fast_malloc(&sl->rbsp_buffer, &sl->rbsp_buffer_size,
length + FF_INPUT_BUFFER_PADDING_SIZE);
dst = h->rbsp_buffer;
dst = sl->rbsp_buffer;
if (!dst)
return NULL;
@ -380,10 +381,6 @@ void ff_h264_free_tables(H264Context *h, int free_rbsp)
if (!hx)
continue;
if (free_rbsp) {
av_freep(&hx->rbsp_buffer);
hx->rbsp_buffer_size = 0;
}
if (i)
av_freep(&h->thread_context[i]);
}
@ -405,6 +402,11 @@ void ff_h264_free_tables(H264Context *h, int free_rbsp)
sl->edge_emu_buffer_allocated = 0;
sl->top_borders_allocated[0] = 0;
sl->top_borders_allocated[1] = 0;
if (free_rbsp) {
av_freep(&sl->rbsp_buffer);
sl->rbsp_buffer_size = 0;
}
}
}
@ -709,8 +711,6 @@ static int decode_init_thread_copy(AVCodecContext *avctx)
h->slice_ctx[i].h264 = h;
h->avctx = avctx;
h->rbsp_buffer = NULL;
h->rbsp_buffer_size = 0;
h->context_initialized = 0;
return 0;
@ -1385,7 +1385,7 @@ static int get_last_needed_nal(H264Context *h, const uint8_t *buf, int buf_size)
break;
}
ptr = ff_h264_decode_nal(h, buf + buf_index, &dst_length, &consumed,
ptr = ff_h264_decode_nal(h, &h->slice_ctx[0], buf + buf_index, &dst_length, &consumed,
next_avc - buf_index);
if (!ptr || dst_length < 0)
@ -1471,7 +1471,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
hx = h->thread_context[context_count];
sl = &h->slice_ctx[context_count];
ptr = ff_h264_decode_nal(hx, buf + buf_index, &dst_length,
ptr = ff_h264_decode_nal(hx, sl, buf + buf_index, &dst_length,
&consumed, next_avc - buf_index);
if (!ptr || dst_length < 0) {
ret = -1;

8
libavcodec/h264.h
View File

@ -439,6 +439,10 @@ typedef struct H264SliceContext {
CABACContext cabac;
uint8_t cabac_state[1024];
int cabac_init_idc;
// rbsp buffer used for this slice
uint8_t *rbsp_buffer;
unsigned int rbsp_buffer_size;
} H264SliceContext;
/**
@ -542,8 +546,6 @@ typedef struct H264Context {
int nal_ref_idc;
int nal_unit_type;
uint8_t *rbsp_buffer;
unsigned int rbsp_buffer_size;
/**
* Used to parse AVC variant of h264
@ -757,7 +759,7 @@ int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length);
* or a decode rbsp tailing?
* @return decoded bytes, might be src+1 if no escapes
*/
const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
const uint8_t *ff_h264_decode_nal(H264Context *h, H264SliceContext *sl, const uint8_t *src,
int *dst_length, int *consumed, int length);
/**

2
libavcodec/h264_parser.c
View File

@ -226,7 +226,7 @@ static inline int parse_nal_units(AVCodecParserContext *s,
}
break;
}
ptr = ff_h264_decode_nal(h, buf, &dst_length, &consumed, src_length);
ptr = ff_h264_decode_nal(h, sl, buf, &dst_length, &consumed, src_length);
if (!ptr || dst_length < 0)
break;

3
libavcodec/h264_slice.c
View File

@ -535,9 +535,6 @@ int ff_h264_update_thread_context(AVCodecContext *dst,
return ret;
}
h->rbsp_buffer = NULL;
h->rbsp_buffer_size = 0;
h->thread_context[0] = h;
h->context_initialized = 1;