ffmpeg | branch: master | Manuel Lauss <manuel.la...@gmail.com> | Tue Mar 11 13:32:21 2025 +0100| [968ffbe64a6f8a93a84cb99cedae0fc4ba8c5fb9] | committer: Manuel Lauss
avcodec/sanm: codec2 decoder this codec consists of 4 byte packets: 2bytes delta-x, 1 byte delta-y and 1 byte color to put at that spot. Used in Rebel Assault 1 only. Signed-off-by: Manuel Lauss <manuel.la...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=968ffbe64a6f8a93a84cb99cedae0fc4ba8c5fb9 --- libavcodec/sanm.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/libavcodec/sanm.c b/libavcodec/sanm.c index e1471211d6..3fa6c334df 100644 --- a/libavcodec/sanm.c +++ b/libavcodec/sanm.c @@ -607,6 +607,24 @@ static int old_codec1(SANMVideoContext *ctx, int top, return 0; } +static int old_codec2(SANMVideoContext *ctx, int top, + int left, int width, int height) +{ + uint8_t *dst = (uint8_t *)ctx->frm0, col; + int16_t xpos = left, ypos = top; + + while (bytestream2_get_bytes_left(&ctx->gb) > 3) { + xpos += bytestream2_get_le16u(&ctx->gb); + ypos += bytestream2_get_byteu(&ctx->gb); + col = bytestream2_get_byteu(&ctx->gb); + if (xpos >= 0 && ypos >= 0 && + xpos < ctx->width && ypos < ctx->height) { + *(dst + xpos + ypos * ctx->pitch) = col; + } + } + return 0; +} + static inline void codec37_mv(uint8_t *dst, const uint8_t *src, int height, int stride, int x, int y) { @@ -1313,6 +1331,8 @@ static int process_frame_obj(SANMVideoContext *ctx) case 1: case 3: return old_codec1(ctx, top, left, w, h, codec == 3); + case 2: + return old_codec2(ctx, top, left, w, h); case 37: return old_codec37(ctx, w, h); case 47: _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
