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| author | Michael Niedermayer <michaelni@gmx.at> | 2010-12-27 15:10:21 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2010-12-27 15:10:21 +0000 |
| commit | 0ccabeeaef77e240f2a44f78271a8914a23e239b (patch) | |
| tree | fd6d6543d0d2cd6413ef2f62a92013140d0a9b3d /libavfilter/avfilter.c | |
| parent | 9e99f84f7d4fabbbf224da152eacd8f4a50b7bd3 (diff) | |
| download | ffmpeg-0ccabeeaef77e240f2a44f78271a8914a23e239b.tar.gz | |
Support filters and decoders that dont support negative linesizes.
This patch is based on work by stefano.
Originally committed as revision 26108 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavfilter/avfilter.c')
| -rw-r--r-- | libavfilter/avfilter.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c index 362d53701f..104a3b4956 100644 --- a/libavfilter/avfilter.c +++ b/libavfilter/avfilter.c @@ -197,12 +197,13 @@ int avfilter_config_links(AVFilterContext *filter) char *ff_get_ref_perms_string(char *buf, size_t buf_size, int perms) { - snprintf(buf, buf_size, "%s%s%s%s%s", + snprintf(buf, buf_size, "%s%s%s%s%s%s", perms & AV_PERM_READ ? "r" : "", perms & AV_PERM_WRITE ? "w" : "", perms & AV_PERM_PRESERVE ? "p" : "", perms & AV_PERM_REUSE ? "u" : "", - perms & AV_PERM_REUSE2 ? "U" : ""); + perms & AV_PERM_REUSE2 ? "U" : "", + perms & AV_PERM_NEG_LINESIZES ? "n" : ""); return buf; } @@ -360,15 +361,17 @@ void avfilter_start_frame(AVFilterLink *link, AVFilterBufferRef *picref) { void (*start_frame)(AVFilterLink *, AVFilterBufferRef *); AVFilterPad *dst = link->dstpad; + int perms = picref->perms; FF_DPRINTF_START(NULL, start_frame); ff_dprintf_link(NULL, link, 0); dprintf(NULL, " "); ff_dprintf_ref(NULL, picref, 1); if (!(start_frame = dst->start_frame)) start_frame = avfilter_default_start_frame; + if (picref->linesize[0] < 0) + perms |= AV_PERM_NEG_LINESIZES; /* prepare to copy the picture if it has insufficient permissions */ - if ((dst->min_perms & picref->perms) != dst->min_perms || - dst->rej_perms & picref->perms) { + if ((dst->min_perms & perms) != dst->min_perms || dst->rej_perms & perms) { av_log(link->dst, AV_LOG_DEBUG, "frame copy needed (have perms %x, need %x, reject %x)\n", picref->perms, |