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| author | Vittorio Giovara <vittorio.giovara@gmail.com> | 2015-09-22 13:57:59 +0200 |
|---|---|---|
| committer | Vittorio Giovara <vittorio.giovara@gmail.com> | 2015-09-24 10:57:25 +0200 |
| commit | 1bcd4a476ba45a7fdf59d1701b8f0e274418cc32 (patch) | |
| tree | 53226e2f3bfa5239e0f71e492bf0f68d78094f76 /libavcodec | |
| parent | bbf71d46db3417b43bcbd745cbf235e8e2ff69ae (diff) | |
| download | ffmpeg-1bcd4a476ba45a7fdf59d1701b8f0e274418cc32.tar.gz | |
dxv: Support RAW intermediate compression
Sample-Id: boombox64.mov
Reported-by: Aarni Koskela
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/dxv.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/libavcodec/dxv.c b/libavcodec/dxv.c index 9fafef9ac6..3f060cb96b 100644 --- a/libavcodec/dxv.c +++ b/libavcodec/dxv.c @@ -314,6 +314,15 @@ static int dxv_decompress_lzf(AVCodecContext *avctx) return ff_lzf_uncompress(&ctx->gbc, &ctx->tex_data, &ctx->tex_size); } +static int dxv_decompress_raw(AVCodecContext *avctx) +{ + DXVContext *ctx = avctx->priv_data; + GetByteContext *gbc = &ctx->gbc; + + bytestream2_get_buffer(gbc, ctx->tex_data, ctx->tex_size); + return 0; +} + static int dxv_decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { @@ -356,7 +365,14 @@ static int dxv_decode(AVCodecContext *avctx, void *data, size = tag & 0x00FFFFFF; old_type = tag >> 24; version_major = (old_type & 0x0F) - 1; - msgcomp = "LZF"; + + if (old_type & 0x80) { + msgcomp = "RAW"; + decompress_tex = dxv_decompress_raw; + } else { + msgcomp = "LZF"; + decompress_tex = dxv_decompress_lzf; + } if (old_type & 0x40) { msgtext = "DXT5"; @@ -372,7 +388,6 @@ static int dxv_decode(AVCodecContext *avctx, void *data, av_log(avctx, AV_LOG_ERROR, "Unsupported header (0x%08X)\n.", tag); return AVERROR_INVALIDDATA; } - decompress_tex = dxv_decompress_lzf; ctx->tex_rat = 1; break; } @@ -382,7 +397,14 @@ static int dxv_decode(AVCodecContext *avctx, void *data, version_major = bytestream2_get_byte(gbc) - 1; version_minor = bytestream2_get_byte(gbc); - bytestream2_skip(gbc, 2); // unknown + /* Encoder copies texture data when compression is not advantageous. */ + if (bytestream2_get_byte(gbc)) { + msgcomp = "RAW"; + ctx->tex_rat = 1; + decompress_tex = dxv_decompress_raw; + } + + bytestream2_skip(gbc, 1); // unknown size = bytestream2_get_le32(gbc); } av_log(avctx, AV_LOG_DEBUG, |