94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
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#ifdef HAVE_LIBAVUTIL_CHANNEL_LAYOUT_H
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# include <libavutil/channel_layout.h>
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#endif
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#ifdef HAVE_LIBAVUTIL_MATHEMATICS_H
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# include <libavutil/mathematics.h>
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#endif
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#ifndef HAVE_FFMPEG
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# define avcodec_find_best_pix_fmt_of_list(a, b, c, d) avcodec_find_best_pix_fmt2((enum AVPixelFormat *)(a), (b), (c), (d))
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#endif
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#ifndef HAVE_LIBAV_COPY_PACKET
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# define av_copy_packet(dst, src) memcpy(dst, src, sizeof(AVPacket))
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#endif
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#ifndef HAVE_LIBAV_FRAME_ALLOC
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# define av_frame_alloc() avcodec_alloc_frame()
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# define av_frame_free(x) avcodec_free_frame((x))
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#endif
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#ifndef HAVE_LIBAV_BEST_EFFORT_TIMESTAMP
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# define av_frame_get_best_effort_timestamp(x) (x)->pts
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#endif
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#ifndef HAVE_LIBAV_PACKET_RESCALE_TS
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void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
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{
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if (pkt->pts != AV_NOPTS_VALUE)
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pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
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if (pkt->dts != AV_NOPTS_VALUE)
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pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
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if (pkt->duration > 0)
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pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
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if (pkt->convergence_duration > 0)
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pkt->convergence_duration = av_rescale_q(pkt->convergence_duration, src_tb, dst_tb);
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}
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#endif
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#ifndef HAVE_LIBAV_ALLOC_OUTPUT_CONTEXT2
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int avformat_alloc_output_context2(AVFormatContext **avctx, AVOutputFormat *oformat,
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const char *format, const char *filename)
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{
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AVFormatContext *s = avformat_alloc_context();
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int ret = 0;
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*avctx = NULL;
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if (!s)
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goto nomem;
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if (!oformat) {
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if (format) {
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oformat = av_guess_format(format, NULL, NULL);
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if (!oformat) {
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av_log(s, AV_LOG_ERROR, "Requested output format '%s' is not a suitable output format\n", format);
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ret = AVERROR(EINVAL);
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goto error;
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}
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} else {
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oformat = av_guess_format(NULL, filename, NULL);
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if (!oformat) {
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ret = AVERROR(EINVAL);
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av_log(s, AV_LOG_ERROR, "Unable to find a suitable output format for '%s'\n",
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filename);
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goto error;
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}
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}
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}
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s->oformat = oformat;
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if (s->oformat->priv_data_size > 0) {
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s->priv_data = av_mallocz(s->oformat->priv_data_size);
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if (!s->priv_data)
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goto nomem;
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if (s->oformat->priv_class) {
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*(const AVClass**)s->priv_data= s->oformat->priv_class;
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av_opt_set_defaults(s->priv_data);
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}
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} else
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s->priv_data = NULL;
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if (filename)
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snprintf(s->filename, sizeof(s->filename), "%s", filename);
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*avctx = s;
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return 0;
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nomem:
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av_log(s, AV_LOG_ERROR, "Out of memory\n");
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ret = AVERROR(ENOMEM);
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error:
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avformat_free_context(s);
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return ret;
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}
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#endif
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