| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <stdio.h> |
| |
| #include "libavutil/avstring.h" |
| #include "libavutil/common.h" |
| #include "libavutil/log.h" |
| |
| #include "bsf.h" |
| #include "bsf_internal.h" |
| #include "cbs.h" |
| |
| |
| typedef struct TraceHeadersContext { |
| CodedBitstreamContext *cbc; |
| CodedBitstreamFragment fragment; |
| } TraceHeadersContext; |
| |
| |
| static int trace_headers_init(AVBSFContext *bsf) |
| { |
| TraceHeadersContext *ctx = bsf->priv_data; |
| int err; |
| |
| err = ff_cbs_init(&ctx->cbc, bsf->par_in->codec_id, bsf); |
| if (err < 0) |
| return err; |
| |
| ctx->cbc->trace_enable = 1; |
| ctx->cbc->trace_level = AV_LOG_INFO; |
| |
| if (bsf->par_in->extradata) { |
| CodedBitstreamFragment *frag = &ctx->fragment; |
| |
| av_log(bsf, AV_LOG_INFO, "Extradata\n"); |
| |
| err = ff_cbs_read_extradata(ctx->cbc, frag, bsf->par_in); |
| |
| ff_cbs_fragment_reset(frag); |
| } |
| |
| return err; |
| } |
| |
| static void trace_headers_close(AVBSFContext *bsf) |
| { |
| TraceHeadersContext *ctx = bsf->priv_data; |
| |
| ff_cbs_fragment_free(&ctx->fragment); |
| ff_cbs_close(&ctx->cbc); |
| } |
| |
| static int trace_headers(AVBSFContext *bsf, AVPacket *pkt) |
| { |
| TraceHeadersContext *ctx = bsf->priv_data; |
| CodedBitstreamFragment *frag = &ctx->fragment; |
| char tmp[256] = { 0 }; |
| int err; |
| |
| err = ff_bsf_get_packet_ref(bsf, pkt); |
| if (err < 0) |
| return err; |
| |
| if (pkt->flags & AV_PKT_FLAG_KEY) |
| av_strlcat(tmp, ", key frame", sizeof(tmp)); |
| if (pkt->flags & AV_PKT_FLAG_CORRUPT) |
| av_strlcat(tmp, ", corrupt", sizeof(tmp)); |
| |
| if (pkt->pts != AV_NOPTS_VALUE) |
| av_strlcatf(tmp, sizeof(tmp), ", pts %"PRId64, pkt->pts); |
| else |
| av_strlcat(tmp, ", no pts", sizeof(tmp)); |
| if (pkt->dts != AV_NOPTS_VALUE) |
| av_strlcatf(tmp, sizeof(tmp), ", dts %"PRId64, pkt->dts); |
| else |
| av_strlcat(tmp, ", no dts", sizeof(tmp)); |
| if (pkt->duration > 0) |
| av_strlcatf(tmp, sizeof(tmp), ", duration %"PRId64, pkt->duration); |
| |
| av_log(bsf, AV_LOG_INFO, "Packet: %d bytes%s.\n", pkt->size, tmp); |
| |
| err = ff_cbs_read_packet(ctx->cbc, frag, pkt); |
| |
| ff_cbs_fragment_reset(frag); |
| |
| if (err < 0) |
| av_packet_unref(pkt); |
| return err; |
| } |
| |
| const AVBitStreamFilter ff_trace_headers_bsf = { |
| .name = "trace_headers", |
| .priv_data_size = sizeof(TraceHeadersContext), |
| .init = &trace_headers_init, |
| .close = &trace_headers_close, |
| .filter = &trace_headers, |
| .codec_ids = ff_cbs_all_codec_ids, |
| }; |