From 33d18982fa03feb061c8f744a4f0a9175c1f63ab Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sat, 23 Nov 2013 11:43:13 +0100 Subject: lavc: add a new bitstream filtering API Deprecate the current bitstream filtering API. --- libavcodec/imx_dump_header_bsf.c | 63 +++++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 24 deletions(-) (limited to 'libavcodec/imx_dump_header_bsf.c') diff --git a/libavcodec/imx_dump_header_bsf.c b/libavcodec/imx_dump_header_bsf.c index a79039da33..71bda02356 100644 --- a/libavcodec/imx_dump_header_bsf.c +++ b/libavcodec/imx_dump_header_bsf.c @@ -26,36 +26,51 @@ */ #include "avcodec.h" +#include "bsf.h" #include "bytestream.h" -static int imx_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args, - uint8_t **poutbuf, int *poutbuf_size, - const uint8_t *buf, int buf_size, int keyframe) +static int imx_dump_header(AVBSFContext *ctx, AVPacket *out) { /* MXF essence element key */ static const uint8_t imx_header[16] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }; - uint8_t *poutbufp; - - if (avctx->codec_id != AV_CODEC_ID_MPEG2VIDEO) { - av_log(avctx, AV_LOG_ERROR, "imx bitstream filter only applies to mpeg2video codec\n"); - return 0; - } - - *poutbuf = av_malloc(buf_size + 20 + AV_INPUT_BUFFER_PADDING_SIZE); - if (!*poutbuf) - return AVERROR(ENOMEM); - poutbufp = *poutbuf; - bytestream_put_buffer(&poutbufp, imx_header, 16); - bytestream_put_byte(&poutbufp, 0x83); /* KLV BER long form */ - bytestream_put_be24(&poutbufp, buf_size); - bytestream_put_buffer(&poutbufp, buf, buf_size); - *poutbuf_size = poutbufp - *poutbuf; - return 1; + + AVPacket *in; + int ret = 0; + uint8_t *out_buf; + + ret = ff_bsf_get_packet(ctx, &in); + if (ret < 0) + return ret; + + ret = av_new_packet(out, in->size + 20); + if (ret < 0) + goto fail; + + out_buf = out->data; + + bytestream_put_buffer(&out_buf, imx_header, 16); + bytestream_put_byte(&out_buf, 0x83); /* KLV BER long form */ + bytestream_put_be24(&out_buf, in->size); + bytestream_put_buffer(&out_buf, in->data, in->size); + + ret = av_packet_copy_props(out, in); + if (ret < 0) + goto fail; + +fail: + if (ret < 0) + av_packet_unref(out); + av_packet_free(&in); + return ret; } -AVBitStreamFilter ff_imx_dump_header_bsf = { - "imxdump", - 0, - imx_dump_header, +static const enum AVCodecID codec_ids[] = { + AV_CODEC_ID_MPEG2VIDEO, AV_CODEC_ID_NONE, +}; + +const AVBitStreamFilter ff_imx_dump_header_bsf = { + .name = "imxdump", + .filter = imx_dump_header, + .codec_ids = codec_ids, }; -- cgit v1.2.3