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vaapi_encode: Maintain a pool of bitstream output buffers

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Previously we would allocate a new one for every frame.  This instead
maintains an AVBufferPool of them to use as-needed.

Also makes the maximum size of an output buffer adapt to the frame
size - the fixed upper bound was a bit too easy to hit when encoding
large pictures at high quality.
This commit is contained in:
Mark Thompson 2016-06-05 17:18:04 +01:00
parent bd31c61cf9
commit 8a62d2c28f
2 changed files with 75 additions and 19 deletions
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4
libavcodec/vaapi_encode.h
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@ -39,7 +39,6 @@ enum {
MAX_PARAM_BUFFERS = 16,
MAX_REORDER_DELAY = 16,
MAX_PARAM_BUFFER_SIZE = 1024,
MAX_OUTPUT_BUFFER_SIZE = 1024 * 1024,
};
enum {
@ -84,6 +83,7 @@ typedef struct VAAPIEncodePicture {
int nb_param_buffers;
VABufferID param_buffers[MAX_PARAM_BUFFERS];
AVBufferRef *output_buffer_ref;
VABufferID output_buffer;
void *priv_data;
@ -130,6 +130,8 @@ typedef struct VAAPIEncodeContext {
AVBufferRef *recon_frames_ref;
AVHWFramesContext *recon_frames;
AVBufferPool *output_buffer_pool;
VAConfigAttrib config_attributes[MAX_CONFIG_ATTRIBUTES];
int nb_config_attributes;