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lavfi/framepool: add audio support
This commit is contained in:
Matthieu Bouron
Matthieu Bouron
parent
b1f68f00b1
commit
eb3368178e
@ -20,6 +20,7 @@
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#include "framepool.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avutil.h"
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#include "libavutil/buffer.h"
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#include "libavutil/frame.h"
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#include "libavutil/imgutils.h"
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@ -28,8 +29,18 @@
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struct FFFramePool {
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enum AVMediaType type;
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/* video */
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int width;
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int height;
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/* audio */
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int planes;
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int channels;
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int nb_samples;
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/* common */
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int format;
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int align;
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int linesize[4];
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@ -54,6 +65,7 @@ FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(int size),
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if (!pool)
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return NULL;
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pool->type = AVMEDIA_TYPE_VIDEO;
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pool->width = width;
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pool->height = height;
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pool->format = format;
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@ -104,6 +116,44 @@ fail:
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return NULL;
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}
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FFFramePool *ff_frame_pool_audio_init(AVBufferRef* (*alloc)(int size),
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int channels,
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int nb_samples,
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enum AVSampleFormat format,
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int align)
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{
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int ret, planar;
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FFFramePool *pool;
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pool = av_mallocz(sizeof(FFFramePool));
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if (!pool)
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return NULL;
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planar = av_sample_fmt_is_planar(format);
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pool->type = AVMEDIA_TYPE_AUDIO;
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pool->planes = planar ? channels : 1;
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pool->channels = channels;
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pool->nb_samples = nb_samples;
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pool->format = format;
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pool->align = align;
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ret = av_samples_get_buffer_size(&pool->linesize[0], channels,
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nb_samples, format, 0);
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if (ret < 0)
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goto fail;
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pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
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if (!pool->pools[0])
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goto fail;
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return pool;
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fail:
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ff_frame_pool_uninit(&pool);
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return NULL;
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}
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int ff_frame_pool_get_video_config(FFFramePool *pool,
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int *width,
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int *height,
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@ -113,6 +163,8 @@ int ff_frame_pool_get_video_config(FFFramePool *pool,
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if (!pool)
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return AVERROR(EINVAL);
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av_assert0(pool->type == AVMEDIA_TYPE_VIDEO);
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*width = pool->width;
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*height = pool->height;
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*format = pool->format;
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@ -121,6 +173,24 @@ int ff_frame_pool_get_video_config(FFFramePool *pool,
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return 0;
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}
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int ff_frame_pool_get_audio_config(FFFramePool *pool,
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int *channels,
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int *nb_samples,
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enum AVSampleFormat *format,
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int *align)
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{
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if (!pool)
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return AVERROR(EINVAL);
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av_assert0(pool->type == AVMEDIA_TYPE_AUDIO);
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*channels = pool->channels;
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*nb_samples = pool->nb_samples;
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*format = pool->format;
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*align = pool->align;
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return 0;
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}
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AVFrame *ff_frame_pool_get(FFFramePool *pool)
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{
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@ -133,6 +203,8 @@ AVFrame *ff_frame_pool_get(FFFramePool *pool)
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return NULL;
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}
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switch(pool->type) {
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case AVMEDIA_TYPE_VIDEO:
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desc = av_pix_fmt_desc_get(pool->format);
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if (!desc) {
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goto fail;
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@ -167,6 +239,43 @@ AVFrame *ff_frame_pool_get(FFFramePool *pool)
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}
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frame->extended_data = frame->data;
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break;
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case AVMEDIA_TYPE_AUDIO:
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frame->nb_samples = pool->nb_samples;
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av_frame_set_channels(frame, pool->channels);
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frame->format = pool->format;
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frame->linesize[0] = pool->linesize[0];
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if (pool->planes > AV_NUM_DATA_POINTERS) {
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frame->extended_data = av_mallocz_array(pool->planes,
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sizeof(*frame->extended_data));
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frame->nb_extended_buf = pool->planes - AV_NUM_DATA_POINTERS;
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frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
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sizeof(*frame->extended_buf));
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if (!frame->extended_data || !frame->extended_buf)
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goto fail;
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} else {
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frame->extended_data = frame->data;
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av_assert0(frame->nb_extended_buf == 0);
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}
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for (i = 0; i < FFMIN(pool->planes, AV_NUM_DATA_POINTERS); i++) {
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frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
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if (!frame->buf[i])
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goto fail;
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frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
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}
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for (i = 0; i < frame->nb_extended_buf; i++) {
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frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
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if (!frame->extended_buf[i])
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goto fail;
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frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
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}
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break;
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default:
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av_assert0(0);
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}
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return frame;
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fail:
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@ -41,7 +41,7 @@ typedef struct FFFramePool FFFramePool;
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* @param height height of each frame in this pool
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* @param format format of each frame in this pool
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* @param align buffers alignement of each frame in this pool
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* @return newly created frame pool on success, NULL on error.
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* @return newly created video frame pool on success, NULL on error.
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*/
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FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(int size),
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int width,
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@ -49,6 +49,24 @@ FFFramePool *ff_frame_pool_video_init(AVBufferRef* (*alloc)(int size),
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enum AVPixelFormat format,
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int align);
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/**
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* Allocate and initialize an audio frame pool.
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*
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* @param alloc a function that will be used to allocate new frame buffers when
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* the pool is empty. May be NULL, then the default allocator will be used
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* (av_buffer_alloc()).
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* @param channels channels of each frame in this pool
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* @param nb_samples number of samples of each frame in this pool
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* @param format format of each frame in this pool
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* @param align buffers alignement of each frame in this pool
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* @return newly created audio frame pool on success, NULL on error.
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*/
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FFFramePool *ff_frame_pool_audio_init(AVBufferRef* (*alloc)(int size),
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int channels,
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int samples,
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enum AVSampleFormat format,
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int align);
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/**
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* Deallocate the frame pool. It is safe to call this function while
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* some of the allocated frame are still in use.
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@ -72,6 +90,22 @@ int ff_frame_pool_get_video_config(FFFramePool *pool,
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enum AVPixelFormat *format,
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int *align);
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/**
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* Get the audio frame pool configuration.
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*
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* @param channels channels of each frame in this pool
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* @param nb_samples number of samples of each frame in this pool
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* @param format format of each frame in this pool
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* @param align buffers alignement of each frame in this pool
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* @return 0 on success, a negative AVERROR otherwise.
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*/
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int ff_frame_pool_get_audio_config(FFFramePool *pool,
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int *channels,
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int *nb_samples,
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enum AVSampleFormat *format,
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int *align);
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/**
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* Allocate a new AVFrame, reussing old buffers from the pool when available.
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* This function may be called simultaneously from multiple threads.
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