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DNxHD: Add support for id 1258 (DNx100 960x720@8) 

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This commit is contained in:
Vittorio Giovara 2015-01-27 20:56:20 +00:00
parent 598f7d046c
commit 1a07df3112
3 changed files with 47 additions and 0 deletions
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1
Changelog
View File

@ -11,6 +11,7 @@ version <next>:
- RTP/mpegts muxer
- VP8 in Ogg demuxing
- OpenH264 encoder wrapper
- Support DNx100 (960x720@8)
version 11:

37
libavcodec/dnxhddata.c
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@ -231,6 +231,28 @@ static const uint8_t dnxhd_1256_chroma_weight[] = {
34, 37, 39, 44, 51, 56, 61, 70,
};
static const uint8_t dnxhd_1258_luma_weight[] = {
0, 32, 36, 36, 40, 40, 55, 60,
34, 36, 37, 40, 41, 48, 57, 82,
35, 36, 41, 41, 46, 52, 73, 82,
37, 40, 42, 45, 50, 65, 80, 87,
39, 41, 44, 49, 62, 78, 88, 90,
41, 44, 49, 58, 73, 90, 95, 95,
43, 52, 55, 68, 90, 100, 97, 93,
52, 53, 71, 82, 107, 103, 99, 99,
};
static const uint8_t dnxhd_1258_chroma_weight[] = {
0, 32, 37, 38, 49, 53, 65, 66,
35, 37, 40, 49, 56, 64, 65, 82,
36, 42, 50, 56, 64, 67, 73, 85,
46, 50, 57, 63, 71, 72, 89, 87,
49, 58, 65, 72, 78, 88, 88, 90,
60, 64, 74, 81, 84, 90, 95, 134,
62, 74, 77, 80, 90, 114, 129, 125,
74, 74, 90, 100, 128, 125, 116, 116,
};
static const uint8_t dnxhd_1237_dc_codes[12] = {
0, 12, 13, 1, 2, 3, 4, 5, 14, 30, 62, 63,
};
@ -1073,6 +1095,14 @@ static const uint8_t dnxhd_1252_ac_index_flag[257] = {
1,
};
static const uint8_t dnxhd_1258_dc_codes[14] = {
0, 12, 13, 1, 2, 3, 4, 5, 14, 30, 62, 63, 0, 0,
};
static const uint8_t dnxhd_1258_dc_bits[14] = {
3, 4, 4, 3, 3, 3, 3, 3, 4, 5, 6, 6, 0, 0,
};
const CIDEntry ff_dnxhd_cid_table[] = {
{ 1235, 1920, 1080, 0, 917504, 917504, 6, 10,
dnxhd_1235_luma_weight, dnxhd_1235_chroma_weight,
@ -1151,6 +1181,13 @@ const CIDEntry ff_dnxhd_cid_table[] = {
dnxhd_1235_1241_ac_run_flag, dnxhd_1235_1241_ac_index_flag,
dnxhd_1235_1238_1241_run_codes, dnxhd_1235_1238_1241_run_bits, dnxhd_1235_1241_run,
{ 350, 390, 440, 730, 880 } },
{ 1258, 960, 720, 0, 212992, 212992, 4, 8,
dnxhd_1258_luma_weight, dnxhd_1258_chroma_weight,
dnxhd_1258_dc_codes, dnxhd_1258_dc_bits,
dnxhd_1252_ac_codes, dnxhd_1252_ac_bits, dnxhd_1252_ac_level,
dnxhd_1252_ac_run_flag, dnxhd_1252_ac_index_flag,
dnxhd_1251_run_codes, dnxhd_1251_run_bits, dnxhd_1251_run,
{ 42, 60, 75, 115 } },
};
int ff_dnxhd_get_cid_table(int cid)

9
libavcodec/dnxhddec.c
View File

@ -165,6 +165,15 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
if ((ret = dnxhd_init_vlc(ctx, cid)) < 0)
return ret;
// make sure profile size constraints are respected
// DNx100 allows 1920->1440 and 1280->960 subsampling
if (ctx->width != ctx->cid_table->width) {
av_reduce(&ctx->avctx->sample_aspect_ratio.num,
&ctx->avctx->sample_aspect_ratio.den,
ctx->width, ctx->cid_table->width, 255);
ctx->width = ctx->cid_table->width;
}
if (buf_size < ctx->cid_table->coding_unit_size) {
av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size (%d < %d).\n",
buf_size, ctx->cid_table->coding_unit_size);