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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | #include |
| 2 | #include |
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| 3 | #include |
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| 4 | #include "libavutil/avassert.h" |
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| 5 | #include "libavdevice/avdevice.h" |
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| 6 | #include "libavfilter/avfilter.h" |
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| 7 | #include "libavfilter/buffersink.h" |
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| 8 | #include "libavformat/avformat.h" |
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| 9 | |||
| 10 | typedef struct { |
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| 11 | AVFormatContext *mux; |
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| 12 | AVStream *stream; |
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| 13 | AVFilterContext *sink; |
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| 14 | AVFilterLink *link; |
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| 15 | } Stream; |
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| 16 | |||
| 17 | static int create_sink(Stream *st, AVFilterGraph *graph, |
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| 18 | AVFilterContext *f, int idx) |
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| 19 | { |
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| 20 | enum AVMediaType type = avfilter_pad_get_type(f->output_pads, idx); |
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| 21 | const char *sink_name; |
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| 22 | int ret; |
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| 23 | |||
| 24 | switch (type) { |
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| 25 | case AVMEDIA_TYPE_VIDEO: sink_name = "buffersink"; break; |
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| 26 | case AVMEDIA_TYPE_AUDIO: sink_name = "abuffersink"; break; |
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| 27 | default: |
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| 28 | av_log(NULL, AV_LOG_ERROR, "Stream type not supported\n"); |
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| 29 | return AVERROR(EINVAL); |
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| 30 | } |
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| 31 | ret = avfilter_graph_create_filter(&st->sink, |
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| 32 | avfilter_get_by_name(sink_name), |
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| 33 | NULL, NULL, NULL, graph); |
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| 34 | if (ret < 0) |
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| 35 | return ret; |
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| 36 | ret = avfilter_link(f, idx, st->sink, 0); |
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| 37 | if (ret < 0) |
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| 38 | return ret; |
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| 39 | st->link = st->sink->inputs[0]; |
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| 40 | return 0; |
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| 41 | } |
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| 42 | |||
| 43 | int main(int argc, char **argv) |
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| 44 | { |
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| 45 | char *in_graph_desc, **out_dev_name; |
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| 46 | int nb_out_dev = 0, nb_streams = 0; |
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| 47 | AVFilterGraph *in_graph = NULL; |
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| 48 | Stream *streams = NULL, *st; |
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| 49 | AVFrame *frame = NULL; |
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| 50 | int i, j, run = 1, ret; |
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| 51 | |||
| 52 | //av_log_set_level(AV_LOG_DEBUG); |
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| 53 | |||
| 54 | if (argc < 3) { |
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| 55 | av_log(NULL, AV_LOG_ERROR, |
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| 56 | "Usage: %s filter_graph dev:out [dev2:out2...]\n\n" |
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| 57 | "Examples:\n" |
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| 58 | "%s movie=file.nut:s=v+a xv:- alsa:default\n" |
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| 59 | "%s movie=file.nut:s=v+a uncodedframecrc:pipe:0\n", |
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| 60 | argv[0], argv[0], argv[0]); |
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| 61 | exit(1); |
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| 62 | } |
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| 63 | in_graph_desc = argv[1]; |
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| 64 | out_dev_name = argv + 2; |
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| 65 | nb_out_dev = argc - 2; |
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| 66 | |||
| 67 | av_register_all(); |
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| 68 | avdevice_register_all(); |
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| 69 | avfilter_register_all(); |
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| 70 | |||
| 71 | /* Create input graph */ |
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| 72 | if (!(in_graph = avfilter_graph_alloc())) { |
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| 73 | ret = AVERROR(ENOMEM); |
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| 74 | av_log(NULL, AV_LOG_ERROR, "Unable to alloc graph graph: %s\n", |
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| 75 | av_err2str(ret)); |
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| 76 | goto fail; |
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| 77 | } |
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| 78 | ret = avfilter_graph_parse_ptr(in_graph, in_graph_desc, NULL, NULL, NULL); |
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| 79 | if (ret < 0) { |
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| 80 | av_log(NULL, AV_LOG_ERROR, "Unable to parse graph: %s\n", |
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| 81 | av_err2str(ret)); |
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| 82 | goto fail; |
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| 83 | } |
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| 84 | nb_streams = 0; |
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| 85 | for (i = 0; i < in_graph->nb_filters; i++) { |
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| 86 | AVFilterContext *f = in_graph->filters[i]; |
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| 87 | for (j = 0; j < f->nb_inputs; j++) { |
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| 88 | if (!f->inputs[j]) { |
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| 89 | av_log(NULL, AV_LOG_ERROR, "Graph has unconnected inputs\n"); |
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| 90 | ret = AVERROR(EINVAL); |
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| 91 | goto fail; |
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| 92 | } |
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| 93 | } |
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| 94 | for (j = 0; j < f->nb_outputs; j++) |
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| 95 | if (!f->outputs[j]) |
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| 96 | nb_streams++; |
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| 97 | } |
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| 98 | if (!nb_streams) { |
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| 99 | av_log(NULL, AV_LOG_ERROR, "Graph has no output stream\n"); |
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| 100 | ret = AVERROR(EINVAL); |
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| 101 | goto fail; |
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| 102 | } |
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| 103 | if (nb_out_dev != 1 && nb_out_dev != nb_streams) { |
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| 104 | av_log(NULL, AV_LOG_ERROR, |
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| 105 | "Graph has %d output streams, %d devices given\n", |
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| 106 | nb_streams, nb_out_dev); |
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| 107 | ret = AVERROR(EINVAL); |
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| 108 | goto fail; |
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| 109 | } |
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| 110 | |||
| 111 | if (!(streams = av_calloc(nb_streams, sizeof(*streams)))) { |
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| 112 | ret = AVERROR(ENOMEM); |
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| 113 | av_log(NULL, AV_LOG_ERROR, "Could not allocate streams\n"); |
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| 114 | } |
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| 115 | st = streams; |
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| 116 | for (i = 0; i < in_graph->nb_filters; i++) { |
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| 117 | AVFilterContext *f = in_graph->filters[i]; |
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| 118 | for (j = 0; j < f->nb_outputs; j++) { |
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| 119 | if (!f->outputs[j]) { |
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| 120 | if ((ret = create_sink(st++, in_graph, f, j)) < 0) |
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| 121 | goto fail; |
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| 122 | } |
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| 123 | } |
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| 124 | } |
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| 125 | av_assert0(st - streams == nb_streams); |
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| 126 | if ((ret = avfilter_graph_config(in_graph, NULL)) < 0) { |
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| 127 | av_log(NULL, AV_LOG_ERROR, "Failed to configure graph\n"); |
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| 128 | goto fail; |
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| 129 | } |
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| 130 | |||
| 131 | /* Create output devices */ |
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| 132 | for (i = 0; i < nb_out_dev; i++) { |
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| 133 | char *fmt = NULL, *dev = out_dev_name[i]; |
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| 134 | st = &streams[i]; |
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| 135 | if ((dev = strchr(dev, ':'))) { |
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| 136 | *(dev++) = 0; |
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| 137 | fmt = out_dev_name[i]; |
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| 138 | } |
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| 139 | ret = avformat_alloc_output_context2(&st->mux, NULL, fmt, dev); |
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| 140 | if (ret < 0) { |
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| 141 | av_log(NULL, AV_LOG_ERROR, "Failed to allocate output: %s\n", |
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| 142 | av_err2str(ret)); |
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| 143 | goto fail; |
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| 144 | } |
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| 145 | if (!(st->mux->oformat->flags & AVFMT_NOFILE)) { |
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| 146 | ret = avio_open2(&st->mux->pb, st->mux->filename, AVIO_FLAG_WRITE, |
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| 147 | NULL, NULL); |
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| 148 | if (ret < 0) { |
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| 149 | av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n", |
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| 150 | av_err2str(ret)); |
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| 151 | goto fail; |
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| 152 | } |
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| 153 | } |
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| 154 | } |
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| 155 | for (; i < nb_streams; i++) |
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| 156 | streams[i].mux = streams[0].mux; |
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| 157 | |||
| 158 | /* Create output device streams */ |
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| 159 | for (i = 0; i < nb_streams; i++) { |
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| 160 | st = &streams[i]; |
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| 161 | if (!(st->stream = avformat_new_stream(st->mux, NULL))) { |
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| 162 | ret = AVERROR(ENOMEM); |
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| 163 | av_log(NULL, AV_LOG_ERROR, "Failed to create output stream\n"); |
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| 164 | goto fail; |
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| 165 | } |
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| 166 | st->stream->codec->codec_type = st->link->type; |
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| 167 | st->stream->time_base = st->stream->codec->time_base = |
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| 168 | st->link->time_base; |
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| 169 | switch (st->link->type) { |
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| 170 | case AVMEDIA_TYPE_VIDEO: |
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| 171 | st->stream->codec->codec_id = AV_CODEC_ID_RAWVIDEO; |
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| 172 | st->stream->avg_frame_rate = |
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| 173 | st->stream-> r_frame_rate = av_buffersink_get_frame_rate(st->sink); |
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| 174 | st->stream->codec->width = st->link->w; |
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| 175 | st->stream->codec->height = st->link->h; |
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| 176 | st->stream->codec->sample_aspect_ratio = st->link->sample_aspect_ratio; |
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| 177 | st->stream->codec->pix_fmt = st->link->format; |
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| 178 | break; |
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| 179 | case AVMEDIA_TYPE_AUDIO: |
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| 180 | st->stream->codec->channel_layout = st->link->channel_layout; |
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| 181 | st->stream->codec->channels = avfilter_link_get_channels(st->link); |
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| 182 | st->stream->codec->sample_rate = st->link->sample_rate; |
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| 183 | st->stream->codec->sample_fmt = st->link->format; |
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| 184 | st->stream->codec->codec_id = |
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| 185 | av_get_pcm_codec(st->stream->codec->sample_fmt, -1); |
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| 186 | break; |
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| 187 | default: |
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| 188 | av_assert0(!"reached"); |
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| 189 | } |
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| 190 | } |
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| 191 | |||
| 192 | /* Init output devices */ |
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| 193 | for (i = 0; i < nb_out_dev; i++) { |
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| 194 | st = &streams[i]; |
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| 195 | if ((ret = avformat_write_header(st->mux, NULL)) < 0) { |
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| 196 | av_log(st->mux, AV_LOG_ERROR, "Failed to init output: %s\n", |
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| 197 | av_err2str(ret)); |
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| 198 | goto fail; |
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| 199 | } |
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| 200 | } |
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| 201 | |||
| 202 | /* Check output devices */ |
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| 203 | for (i = 0; i < nb_streams; i++) { |
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| 204 | st = &streams[i]; |
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| 205 | ret = av_write_uncoded_frame_query(st->mux, st->stream->index); |
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| 206 | if (ret < 0) { |
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| 207 | av_log(st->mux, AV_LOG_ERROR, |
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| 208 | "Uncoded frames not supported on stream #%d: %s\n", |
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| 209 | i, av_err2str(ret)); |
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| 210 | goto fail; |
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| 211 | } |
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| 212 | } |
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| 213 | |||
| 214 | while (run) { |
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| 215 | ret = avfilter_graph_request_oldest(in_graph); |
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| 216 | if (ret < 0) { |
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| 217 | if (ret == AVERROR_EOF) { |
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| 218 | run = 0; |
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| 219 | } else { |
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| 220 | av_log(NULL, AV_LOG_ERROR, "Error filtering: %s\n", |
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| 221 | av_err2str(ret)); |
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| 222 | break; |
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| 223 | } |
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| 224 | } |
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| 225 | for (i = 0; i < nb_streams; i++) { |
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| 226 | st = &streams[i]; |
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| 227 | while (1) { |
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| 228 | if (!frame && !(frame = av_frame_alloc())) { |
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| 229 | ret = AVERROR(ENOMEM); |
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| 230 | av_log(NULL, AV_LOG_ERROR, "Could not allocate frame\n"); |
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| 231 | goto fail; |
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| 232 | } |
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| 233 | ret = av_buffersink_get_frame_flags(st->sink, frame, |
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| 234 | AV_BUFFERSINK_FLAG_NO_REQUEST); |
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| 235 | if (ret < 0) { |
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| 236 | if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) |
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| 237 | av_log(NULL, AV_LOG_WARNING, "Error in sink: %s\n", |
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| 238 | av_err2str(ret)); |
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| 239 | break; |
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| 240 | } |
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| 241 | if (frame->pts != AV_NOPTS_VALUE) |
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| 242 | frame->pts = av_rescale_q(frame->pts, |
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| 243 | st->link ->time_base, |
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| 244 | st->stream->time_base); |
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| 245 | ret = av_interleaved_write_uncoded_frame(st->mux, |
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| 246 | st->stream->index, |
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| 247 | frame); |
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| 248 | frame = NULL; |
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| 249 | if (ret < 0) { |
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| 250 | av_log(st->stream->codec, AV_LOG_ERROR, |
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| 251 | "Error writing frame: %s\n", av_err2str(ret)); |
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| 252 | goto fail; |
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| 253 | } |
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| 254 | } |
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| 255 | } |
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| 256 | } |
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| 257 | ret = 0; |
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| 258 | |||
| 259 | for (i = 0; i < nb_out_dev; i++) { |
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| 260 | st = &streams[i]; |
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| 261 | av_write_trailer(st->mux); |
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| 262 | } |
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| 263 | |||
| 264 | fail: |
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| 265 | av_frame_free(&frame); |
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| 266 | avfilter_graph_free(&in_graph); |
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| 267 | if (streams) { |
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| 268 | for (i = 0; i < nb_out_dev; i++) { |
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| 269 | st = &streams[i]; |
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| 270 | if (st->mux) { |
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| 271 | if (st->mux->pb) |
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| 272 | avio_closep(&st->mux->pb); |
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| 273 | avformat_free_context(st->mux); |
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| 274 | } |
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| 275 | } |
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| 276 | } |
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| 277 | av_freep(&streams); |
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| 278 | return ret < 0; |
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| 279 | } |