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ffmpeg.wasm-core
Commit 237bbf66 authored by Paul B Mahol's avatar Paul B Mahol
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avcodec/dnxhddec: ask for samples with alpha

parent 7bb90a94
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libavcodec/dnxhddec.c
View file @ 237bbf66
...@@ -67,6 +67,8 @@ typedef struct DNXHDContext { ...@@ -67,6 +67,8 @@ typedef struct DNXHDContext {
const CIDEntry *cid_table; const CIDEntry *cid_table;
int bit_depth; // 8, 10, 12 or 0 if not initialized at all. int bit_depth; // 8, 10, 12 or 0 if not initialized at all.
int is_444; int is_444;
int alpha;
int lla;
int mbaff; int mbaff;
int act; int act;
int (*decode_dct_block)(const struct DNXHDContext *ctx, int (*decode_dct_block)(const struct DNXHDContext *ctx,
...@@ -205,6 +207,10 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, ...@@ -205,6 +207,10 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
ctx->cur_field = 0; ctx->cur_field = 0;
} }
ctx->mbaff = (buf[0x6] >> 5) & 1; ctx->mbaff = (buf[0x6] >> 5) & 1;
ctx->alpha = buf[0x7] & 1;
ctx->lla = (buf[0x7] >> 1) & 1;
if (ctx->alpha)
avpriv_request_sample(ctx->avctx, "alpha");
ctx->height = AV_RB16(buf + 0x18); ctx->height = AV_RB16(buf + 0x18);
ctx->width = AV_RB16(buf + 0x1a); ctx->width = AV_RB16(buf + 0x1a);
......
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