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matroskamux: Don't get stuck in an infinite loop with Dirac
At the end, Dirac streams have an EOS packet with 0 length. Don't ever sit in an infinite loop when processing one. Allows muxing Dirac into mkv to complete successfully.
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123181a114
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600516be90
1 changed files with 7 additions and 2 deletions
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@ -2431,6 +2431,8 @@ gst_matroska_mux_create_buffer_header (GstMatroskaTrackContext * track,
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return hdr;
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}
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#define DIRAC_PARSE_CODE_SEQUENCE 0x00
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static GstBuffer *
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gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
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GstMatroskaPad * collect_pad, GstBuffer * buf)
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@ -2451,13 +2453,13 @@ gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
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/* Check if this buffer contains a picture packet */
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while (size >= 13) {
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if (GST_READ_UINT32_BE (data) != 0x42424344) {
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if (GST_READ_UINT32_BE (data) != 0x42424344 /* 'BBCD' */ ) {
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gst_buffer_unref (buf);
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return ret;
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}
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parse_code = GST_READ_UINT8 (data + 4);
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if (parse_code == 0x00) {
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if (parse_code == DIRAC_PARSE_CODE_SEQUENCE) {
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if (ctx->dirac_unit) {
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gst_buffer_unref (ctx->dirac_unit);
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ctx->dirac_unit = NULL;
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@ -2469,6 +2471,9 @@ gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
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next_parse_offset = GST_READ_UINT32_BE (data + 5);
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if (G_UNLIKELY (next_parse_offset == 0))
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break;
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data += next_parse_offset;
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size -= next_parse_offset;
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}
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