diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2011-03-09 17:13:59 +0300 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-04-03 18:40:12 +0400 |
commit | 7d948dc424c3620e351d27afdf933c99f9435467 (patch) | |
tree | 711b70fc32faa0b8279df88c055b64b19ec3cadb /libavfilter/vsrc_buffer.c | |
parent | 0b9dffc67ab506a5d148993b98d8713a76623892 (diff) |
Support changing pixel formats on avfilter input.
Fix issue2217
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavfilter/vsrc_buffer.c')
-rw-r--r-- | libavfilter/vsrc_buffer.c | 53 |
1 files changed, 51 insertions, 2 deletions
diff --git a/libavfilter/vsrc_buffer.c b/libavfilter/vsrc_buffer.c index 7b9ae95074..226c48ea02 100644 --- a/libavfilter/vsrc_buffer.c +++ b/libavfilter/vsrc_buffer.c @@ -37,10 +37,13 @@ typedef struct { AVRational pixel_aspect; } BufferSourceContext; -int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame, - int64_t pts, AVRational pixel_aspect) +int av_vsrc_buffer_add_frame2(AVFilterContext *buffer_filter, AVFrame *frame, + int64_t pts, AVRational pixel_aspect, int width, + int height, enum PixelFormat pix_fmt, + const char *sws_param) { BufferSourceContext *c = buffer_filter->priv; + int ret; if (c->has_frame) { av_log(buffer_filter, AV_LOG_ERROR, @@ -50,6 +53,42 @@ int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame, //return -1; } + if(width != c->w || height != c->h || pix_fmt != c->pix_fmt){ + AVFilterContext *scale= buffer_filter->outputs[0]->dst; + AVFilterLink *link; + + av_log(buffer_filter, AV_LOG_INFO, "Changing filter graph input to accept %dx%d %d (%d %d)\n", + width,height,pix_fmt, c->pix_fmt, scale->outputs[0]->format); + + if(!scale || strcmp(scale->filter->name,"scale")){ + AVFilter *f= avfilter_get_by_name("scale"); + + av_log(buffer_filter, AV_LOG_INFO, "Inserting scaler filter\n"); + if(avfilter_open(&scale, f, "Input equalizer") < 0) + return -1; + + if((ret=avfilter_init_filter(scale, sws_param, NULL))<0){ + avfilter_free(scale); + return ret; + } + + if((ret=avfilter_insert_filter(buffer_filter->outputs[0], scale, 0, 0))<0){ + avfilter_free(scale); + return ret; + } + + scale->outputs[0]->format= c->pix_fmt; + } + + c->pix_fmt= scale->inputs[0]->format= pix_fmt; + c->w= scale->inputs[0]->w= width; + c->h= scale->inputs[0]->h= height; + + link= scale->outputs[0]; + if ((ret = link->srcpad->config_props(link)) < 0) + return ret; + } + memcpy(c->frame.data , frame->data , sizeof(frame->data)); memcpy(c->frame.linesize, frame->linesize, sizeof(frame->linesize)); c->frame.interlaced_frame= frame->interlaced_frame; @@ -61,6 +100,16 @@ int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame, return 0; } +int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame, + int64_t pts, AVRational pixel_aspect) +{ + BufferSourceContext *c = buffer_filter->priv; + + return av_vsrc_buffer_add_frame2(buffer_filter, frame, + pts, pixel_aspect, c->w, + c->h, c->pix_fmt, ""); +} + static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque) { BufferSourceContext *c = ctx->priv; |