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avcodec/dnxhd*: add ff_dnxhd_get_hr_frame_size()

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-04-14 16:09:07 +02:00
parent 34c2eea3d8
commit 5dedb2afd6
3 changed files with 16 additions and 23 deletions
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15
libavcodec/dnxhd_parser.c
View File

@ -36,19 +36,6 @@ typedef struct {
int w, h;
} DNXHDParserContext;
static int dnxhd_get_hr_frame_size(int cid, int w, int h)
{
int result, i = ff_dnxhd_get_cid_table(cid);
if (i < 0)
return i;
result = ((h + 15) / 16) * ((w + 15) / 16) * (int64_t)ff_dnxhd_cid_table[i].packet_scale.num / ff_dnxhd_cid_table[i].packet_scale.den;
result = (result + 2048) / 4096 * 4096;
return FFMAX(result, 8192);
}
static int dnxhd_find_frame_end(DNXHDParserContext *dctx,
const uint8_t *buf, int buf_size)
{
@ -93,7 +80,7 @@ static int dnxhd_find_frame_end(DNXHDParserContext *dctx,
dctx->remaining = avpriv_dnxhd_get_frame_size(cid);
if (dctx->remaining <= 0) {
dctx->remaining = dnxhd_get_hr_frame_size(cid, dctx->w, dctx->h);
dctx->remaining = ff_dnxhd_get_hr_frame_size(cid, dctx->w, dctx->h);
if (dctx->remaining <= 0)
return dctx->remaining;
}

13
libavcodec/dnxhddata.h
View File

@ -91,6 +91,19 @@ static av_always_inline uint64_t ff_dnxhd_parse_header_prefix(const uint8_t *buf
return ff_dnxhd_check_header_prefix(prefix);
}
static av_always_inline int ff_dnxhd_get_hr_frame_size(int cid, int w, int h)
{
int result, i = ff_dnxhd_get_cid_table(cid);
if (i < 0)
return i;
result = ((h + 15) / 16) * ((w + 15) / 16) * (int64_t)ff_dnxhd_cid_table[i].packet_scale.num / ff_dnxhd_cid_table[i].packet_scale.den;
result = (result + 2048) / 4096 * 4096;
return FFMAX(result, 8192);
}
int avpriv_dnxhd_get_frame_size(int cid);
int avpriv_dnxhd_get_interlaced(int cid);
#if LIBAVCODEC_VERSION_MAJOR < 58

11
libavcodec/dnxhdenc.c
View File

@ -362,13 +362,6 @@ fail:
return AVERROR(ENOMEM);
}
static int dnxhd_get_hr_frame_size(const CIDEntry* profile, int mb_num)
{
int result = mb_num * profile->packet_scale.num / profile->packet_scale.den;
result = (result + 2048) / 4096 * 4096;
return FFMAX(result, 8192);
}
static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
{
DNXHDEncContext *ctx = avctx->priv_data;
@ -483,8 +476,8 @@ static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
ctx->m.mb_num = ctx->m.mb_height * ctx->m.mb_width;
if (ctx->cid_table->frame_size == DNXHD_VARIABLE) {
ctx->frame_size = dnxhd_get_hr_frame_size(ctx->cid_table,
ctx->m.mb_num);
ctx->frame_size = ff_dnxhd_get_hr_frame_size(ctx->cid,
ctx->m.mb_width, ctx->m.mb_height);
ctx->coding_unit_size = ctx->frame_size;
} else {
ctx->frame_size = ctx->cid_table->frame_size;