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h264: Replace mpegvideo-specific MAX_PICTURE_COUNT by private define

This commit is contained in:
Vittorio Giovara 2014-02-27 17:07:30 +01:00
parent 9b749c8274
commit 5d1c2e53ab
3 changed files with 14 additions and 12 deletions
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22
libavcodec/h264.c
View File

@ -279,7 +279,7 @@ static void release_unused_pictures(H264Context *h, int remove_current)
int i;
/* release non reference frames */
for (i = 0; i < MAX_PICTURE_COUNT; i++) {
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
if (h->DPB[i].f.buf[0] && !h->DPB[i].reference &&
(remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
unref_picture(h, &h->DPB[i]);
@ -467,11 +467,11 @@ static int find_unused_picture(H264Context *h)
{
int i;
for (i = 0; i < MAX_PICTURE_COUNT; i++) {
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
if (pic_is_unused(h, &h->DPB[i]))
break;
}
if (i == MAX_PICTURE_COUNT)
if (i == H264_MAX_PICTURE_COUNT)
return AVERROR_INVALIDDATA;
if (h->DPB[i].needs_realloc) {
@ -1185,11 +1185,11 @@ static void free_tables(H264Context *h, int free_rbsp)
av_buffer_pool_uninit(&h->ref_index_pool);
if (free_rbsp && h->DPB) {
for (i = 0; i < MAX_PICTURE_COUNT; i++)
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
unref_picture(h, &h->DPB[i]);
av_freep(&h->DPB);
} else if (h->DPB) {
for (i = 0; i < MAX_PICTURE_COUNT; i++)
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
h->DPB[i].needs_realloc = 1;
}
@ -1338,10 +1338,10 @@ int ff_h264_alloc_tables(H264Context *h)
init_dequant_tables(h);
if (!h->DPB) {
h->DPB = av_mallocz_array(MAX_PICTURE_COUNT, sizeof(*h->DPB));
h->DPB = av_mallocz_array(H264_MAX_PICTURE_COUNT, sizeof(*h->DPB));
if (!h->DPB)
return AVERROR(ENOMEM);
for (i = 0; i < MAX_PICTURE_COUNT; i++)
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
av_frame_unref(&h->DPB[i].f);
av_frame_unref(&h->cur_pic.f);
}
@ -1595,7 +1595,7 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)
#undef REBASE_PICTURE
#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
((pic && pic >= old_ctx->DPB && \
pic < old_ctx->DPB + MAX_PICTURE_COUNT) ? \
pic < old_ctx->DPB + H264_MAX_PICTURE_COUNT) ? \
&new_ctx->DPB[pic - old_ctx->DPB] : NULL)
static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
@ -1607,7 +1607,7 @@ static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
for (i = 0; i < count; i++) {
assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
IN_RANGE(from[i], old_base->DPB,
sizeof(H264Picture) * MAX_PICTURE_COUNT) ||
sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) ||
!from[i]));
to[i] = REBASE_PICTURE(from[i], new_base, old_base);
}
@ -1767,7 +1767,7 @@ static int decode_update_thread_context(AVCodecContext *dst,
h->droppable = h1->droppable;
h->low_delay = h1->low_delay;
for (i = 0; i < MAX_PICTURE_COUNT; i++) {
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
unref_picture(h, &h->DPB[i]);
if (h1->DPB[i].f.buf[0] &&
(ret = ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
@ -2801,7 +2801,7 @@ static void flush_dpb(AVCodecContext *avctx)
flush_change(h);
if (h->DPB)
for (i = 0; i < MAX_PICTURE_COUNT; i++)
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
unref_picture(h, &h->DPB[i]);
h->cur_pic_ptr = NULL;
unref_picture(h, &h->cur_pic);

2
libavcodec/h264.h
View File

@ -39,6 +39,8 @@
#include "h264qpel.h"
#include "rectangle.h"
#define H264_MAX_PICTURE_COUNT 32
#define MAX_SPS_COUNT 32
#define MAX_PPS_COUNT 256

2
libavcodec/h264_ps.c
View File

@ -400,7 +400,7 @@ int ff_h264_decode_seq_parameter_set(H264Context *h)
}
sps->ref_frame_count = get_ue_golomb_31(&h->gb);
if (sps->ref_frame_count > MAX_PICTURE_COUNT - 2 ||
if (sps->ref_frame_count > H264_MAX_PICTURE_COUNT - 2 ||
sps->ref_frame_count >= 32U) {
av_log(h->avctx, AV_LOG_ERROR,
"too many reference frames %d\n", sps->ref_frame_count);