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bsf: add a flushing mechanism to AVBSFContext

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Meant to reset the internal bsf state without the need to reinitialize it.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2018-07-27 13:18:29 -03:00
parent 6a9c00c09d
commit e1e1e8dbb2
4 changed files with 20 additions and 1 deletions
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6
libavcodec/avcodec.h
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@@ -4927,6 +4927,7 @@ typedef struct AVBitStreamFilter {
int (*init)(AVBSFContext *ctx);
int (*filter)(AVBSFContext *ctx, AVPacket *pkt);
void (*close)(AVBSFContext *ctx);
void (*flush)(AVBSFContext *ctx);
} AVBitStreamFilter;
#if FF_API_OLD_BSF
@@ -5029,6 +5030,11 @@ int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
*/
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
/**
* Reset the internal bitstream filter state / flush internal buffers.
*/
void av_bsf_flush(AVBSFContext *ctx);
/**
* Free a bitstream filter context and everything associated with it; write NULL
* into the supplied pointer.

10
libavcodec/bsf.c
View File

@@ -170,6 +170,16 @@ int av_bsf_init(AVBSFContext *ctx)
return 0;
}
void av_bsf_flush(AVBSFContext *ctx)
{
ctx->internal->eof = 0;
av_packet_unref(ctx->internal->buffer_pkt);
if (ctx->filter->flush)
ctx->filter->flush(ctx);
}
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
{
if (!pkt || !pkt->data) {

2
libavcodec/version.h
View File

@@ -28,7 +28,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 58
#define LIBAVCODEC_VERSION_MINOR 9
#define LIBAVCODEC_VERSION_MINOR 10
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \