generic-library/ffmpeg
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hap: Move some per-stream setup into decoder init rather than per-frame

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This change will reject frames with a texture type which does not match
the stream description.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This commit is contained in:
Tom Butterworth 2015-07-23 14:37:08 -04:00 committed by Vittorio Giovara
parent b94ec30428
commit 43dd004747
1 changed files with 28 additions and 21 deletions
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49
libavcodec/hapdec.c
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@ -74,29 +74,14 @@ static int setup_texture(AVCodecContext *avctx, size_t length)
HapContext *ctx = avctx->priv_data;
GetByteContext *gbc = &ctx->gbc;
int64_t snappy_size;
const char *texture_name;
const char *compressorstr;
int ret;
switch (ctx->section_type & 0x0F) {
case HAP_FMT_RGBDXT1:
ctx->tex_rat = 8;
ctx->tex_fun = ctx->dxtc.dxt1_block;
texture_name = "DXT1";
break;
case HAP_FMT_RGBADXT5:
ctx->tex_rat = 16;
ctx->tex_fun = ctx->dxtc.dxt5_block;
texture_name = "DXT5";
break;
case HAP_FMT_YCOCGDXT5:
ctx->tex_rat = 16;
ctx->tex_fun = ctx->dxtc.dxt5ys_block;
texture_name = "DXT5-YCoCg-scaled";
break;
default:
if ((avctx->codec_tag == MKTAG('H','a','p','1') && (ctx->section_type & 0x0F) != HAP_FMT_RGBDXT1) ||
(avctx->codec_tag == MKTAG('H','a','p','5') && (ctx->section_type & 0x0F) != HAP_FMT_RGBADXT5) ||
(avctx->codec_tag == MKTAG('H','a','p','Y') && (ctx->section_type & 0x0F) != HAP_FMT_YCOCGDXT5)) {
av_log(avctx, AV_LOG_ERROR,
"Invalid format mode %02X.\n", ctx->section_type);
"Invalid texture format %#04x.\n", ctx->section_type & 0x0F);
return AVERROR_INVALIDDATA;
}
@ -135,8 +120,7 @@ static int setup_texture(AVCodecContext *avctx, size_t length)
return AVERROR_INVALIDDATA;
}
av_log(avctx, AV_LOG_DEBUG, "%s texture with %s compressor\n",
texture_name, compressorstr);
av_log(avctx, AV_LOG_DEBUG, "%s compressor\n", compressorstr);
return 0;
}
@ -220,6 +204,7 @@ static int hap_decode(AVCodecContext *avctx, void *data,
static av_cold int hap_init(AVCodecContext *avctx)
{
HapContext *ctx = avctx->priv_data;
const char *texture_name;
int ret = av_image_check_size(avctx->width, avctx->height, 0, avctx);
if (ret < 0) {
@ -237,6 +222,28 @@ static av_cold int hap_init(AVCodecContext *avctx)
ff_texturedsp_init(&ctx->dxtc);
switch (avctx->codec_tag) {
case MKTAG('H','a','p','1'):
texture_name = "DXT1";
ctx->tex_rat = 8;
ctx->tex_fun = ctx->dxtc.dxt1_block;
break;
case MKTAG('H','a','p','5'):
texture_name = "DXT5";
ctx->tex_rat = 16;
ctx->tex_fun = ctx->dxtc.dxt5_block;
break;
case MKTAG('H','a','p','Y'):
texture_name = "DXT5-YCoCg-scaled";
ctx->tex_rat = 16;
ctx->tex_fun = ctx->dxtc.dxt5ys_block;
break;
default:
return AVERROR_DECODER_NOT_FOUND;
}
av_log(avctx, AV_LOG_DEBUG, "%s texture\n", texture_name);
ctx->slice_count = av_clip(avctx->thread_count, 1,
avctx->coded_height / TEXTURE_BLOCK_H);