[FFmpeg-cvslog] lavc/psd: Support indexed files.
Carl Eugen Hoyos
git at videolan.org
Mon Jan 2 12:43:17 EET 2017
ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Mon Jan 2 11:39:21 2017 +0100| [28307ef7e62874ad5925885af9ccc6423ff83841] | committer: Carl Eugen Hoyos
lavc/psd: Support indexed files.
Fixes ticket #6045.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=28307ef7e62874ad5925885af9ccc6423ff83841
---
libavcodec/psd.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/libavcodec/psd.c b/libavcodec/psd.c
index 3181a41..7587ed9 100644
--- a/libavcodec/psd.c
+++ b/libavcodec/psd.c
@@ -60,6 +60,8 @@ typedef struct PSDContext {
enum PsdCompr compression;
enum PsdColorMode color_mode;
+
+ uint8_t palette[AVPALETTE_SIZE];
} PSDContext;
static int decode_header(PSDContext * s)
@@ -159,6 +161,14 @@ static int decode_header(PSDContext * s)
av_log(s->avctx, AV_LOG_ERROR, "Incomplete file.\n");
return AVERROR_INVALIDDATA;
}
+ if (len_section) {
+ int i,j;
+ memset(s->palette, 0xff, AVPALETTE_SIZE);
+ for (j = HAVE_BIGENDIAN; j < 3 + HAVE_BIGENDIAN; j++)
+ for (i = 0; i < FFMIN(256, len_section / 3); i++)
+ s->palette[i * 4 + (HAVE_BIGENDIAN ? j : 2 - j)] = bytestream2_get_byteu(&s->gb);
+ len_section -= i * 3;
+ }
bytestream2_skip(&s->gb, len_section);
/* image ressources */
@@ -309,6 +319,15 @@ static int decode_frame(AVCodecContext *avctx, void *data,
s->uncompressed_size = s->line_size * s->height * s->channel_count;
switch (s->color_mode) {
+ case PSD_INDEXED:
+ if (s->channel_depth != 8 || s->channel_count != 1) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid indexed file (channel_depth %d, channel_count %d)\n",
+ s->channel_depth, s->channel_count);
+ return AVERROR_INVALIDDATA;
+ }
+ avctx->pix_fmt = AV_PIX_FMT_PAL8;
+ break;
case PSD_RGB:
if (s->channel_count == 3) {
if (s->channel_depth == 8) {
@@ -416,6 +435,11 @@ static int decode_frame(AVCodecContext *avctx, void *data,
}
}
+ if (s->color_mode == PSD_INDEXED) {
+ picture->palette_has_changed = 1;
+ memcpy(picture->data[1], s->palette, AVPALETTE_SIZE);
+ }
+
av_freep(&s->tmp);
picture->pict_type = AV_PICTURE_TYPE_I;
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