diff options
author | Anton Khirnov <anton@khirnov.net> | 2012-05-30 09:57:59 +0400 |
---|---|---|
committer | Anton Khirnov <anton@khirnov.net> | 2012-06-05 11:35:58 +0400 |
commit | d55c2e05b5d07154ce374e159bbc1a6cf40e57d3 (patch) | |
tree | acbd9357cbb5bb3e1854d0e26702515fba894bc2 /avconv.c | |
parent | 3ffa233595fbf1b85841a55c8886e6942f8648d8 (diff) |
avtools: move buffer management code from avconv to cmdutils.
It will be used by avplay.
Diffstat (limited to 'avconv.c')
-rw-r--r-- | avconv.c | 142 |
1 files changed, 0 insertions, 142 deletions
@@ -171,19 +171,6 @@ typedef struct FilterGraph { int nb_outputs; } FilterGraph; -typedef struct FrameBuffer { - uint8_t *base[4]; - uint8_t *data[4]; - int linesize[4]; - - int h, w; - enum PixelFormat pix_fmt; - - int refcount; - struct FrameBuffer **pool; ///< head of the buffer pool - struct FrameBuffer *next; -} FrameBuffer; - typedef struct InputStream { int file_index; AVStream *st; @@ -449,135 +436,6 @@ static void reset_options(OptionsContext *o) init_opts(); } -static int alloc_buffer(FrameBuffer **pool, AVCodecContext *s, FrameBuffer **pbuf) -{ - FrameBuffer *buf = av_mallocz(sizeof(*buf)); - int i, ret; - const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1; - int h_chroma_shift, v_chroma_shift; - int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1 - int w = s->width, h = s->height; - - if (!buf) - return AVERROR(ENOMEM); - - if (!(s->flags & CODEC_FLAG_EMU_EDGE)) { - w += 2*edge; - h += 2*edge; - } - - avcodec_align_dimensions(s, &w, &h); - if ((ret = av_image_alloc(buf->base, buf->linesize, w, h, - s->pix_fmt, 32)) < 0) { - av_freep(&buf); - return ret; - } - /* XXX this shouldn't be needed, but some tests break without this line - * those decoders are buggy and need to be fixed. - * the following tests fail: - * cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit - */ - memset(buf->base[0], 128, ret); - - avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift); - for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) { - const int h_shift = i==0 ? 0 : h_chroma_shift; - const int v_shift = i==0 ? 0 : v_chroma_shift; - if (s->flags & CODEC_FLAG_EMU_EDGE) - buf->data[i] = buf->base[i]; - else - buf->data[i] = buf->base[i] + - FFALIGN((buf->linesize[i]*edge >> v_shift) + - (pixel_size*edge >> h_shift), 32); - } - buf->w = s->width; - buf->h = s->height; - buf->pix_fmt = s->pix_fmt; - buf->pool = pool; - - *pbuf = buf; - return 0; -} - -static void free_buffer_pool(FrameBuffer **pool) -{ - FrameBuffer *buf = *pool; - while (buf) { - *pool = buf->next; - av_freep(&buf->base[0]); - av_free(buf); - buf = *pool; - } -} - -static void unref_buffer(FrameBuffer *buf) -{ - FrameBuffer **pool = buf->pool; - - av_assert0(buf->refcount); - buf->refcount--; - if (!buf->refcount) { - buf->next = *pool; - *pool = buf; - } -} - -static int codec_get_buffer(AVCodecContext *s, AVFrame *frame) -{ - FrameBuffer **pool = s->opaque; - FrameBuffer *buf; - int ret, i; - - if (!*pool && (ret = alloc_buffer(pool, s, pool)) < 0) - return ret; - - buf = *pool; - *pool = buf->next; - buf->next = NULL; - if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) { - av_freep(&buf->base[0]); - av_free(buf); - if ((ret = alloc_buffer(pool, s, &buf)) < 0) - return ret; - } - buf->refcount++; - - frame->opaque = buf; - frame->type = FF_BUFFER_TYPE_USER; - frame->extended_data = frame->data; - frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE; - frame->width = buf->w; - frame->height = buf->h; - frame->format = buf->pix_fmt; - frame->sample_aspect_ratio = s->sample_aspect_ratio; - - for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) { - frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't - frame->data[i] = buf->data[i]; - frame->linesize[i] = buf->linesize[i]; - } - - return 0; -} - -static void codec_release_buffer(AVCodecContext *s, AVFrame *frame) -{ - FrameBuffer *buf = frame->opaque; - int i; - - for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++) - frame->data[i] = NULL; - - unref_buffer(buf); -} - -static void filter_release_buffer(AVFilterBuffer *fb) -{ - FrameBuffer *buf = fb->priv; - av_free(fb); - unref_buffer(buf); -} - /** * Define a function for building a string containing a list of * allowed formats, |