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@@ -57,6 +57,9 @@ struct PayloadContext { |
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int nb_au_headers; |
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int au_headers_length_bytes; |
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int cur_au_index; |
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uint8_t buf[RTP_MAX_PACKET_LENGTH]; |
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int buf_pos, buf_size; |
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}; |
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typedef struct { |
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@@ -149,18 +152,11 @@ static int rtp_parse_mp4_au(PayloadContext *data, const uint8_t *buf, int len) |
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data->au_headers_allocated = data->nb_au_headers; |
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} |
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/* XXX: We handle multiple AU Section as only one (need to fix this for interleaving) |
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In my test, the FAAD decoder does not behave correctly when sending each AU one by one |
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but does when sending the whole as one big packet... */ |
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data->au_headers[0].size = 0; |
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data->au_headers[0].index = 0; |
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for (i = 0; i < data->nb_au_headers; ++i) { |
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data->au_headers[0].size += get_bits_long(&getbitcontext, data->sizelength); |
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data->au_headers[0].index = get_bits_long(&getbitcontext, data->indexlength); |
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data->au_headers[i].size = get_bits_long(&getbitcontext, data->sizelength); |
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data->au_headers[i].index = get_bits_long(&getbitcontext, data->indexlength); |
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} |
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data->nb_au_headers = 1; |
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return 0; |
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} |
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@@ -172,21 +168,44 @@ static int aac_parse_packet(AVFormatContext *ctx, PayloadContext *data, |
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int flags) |
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{ |
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int ret; |
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if (!buf) { |
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if (data->cur_au_index > data->nb_au_headers) |
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return AVERROR_INVALIDDATA; |
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if (data->buf_size - data->buf_pos < data->au_headers[data->cur_au_index].size) |
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return AVERROR_INVALIDDATA; |
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if ((ret = av_new_packet(pkt, data->au_headers[data->cur_au_index].size)) < 0) |
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return ret; |
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memcpy(pkt->data, &data->buf[data->buf_pos], data->au_headers[data->cur_au_index].size); |
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data->buf_pos += data->au_headers[data->cur_au_index].size; |
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pkt->stream_index = st->index; |
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data->cur_au_index++; |
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return data->cur_au_index < data->nb_au_headers; |
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} |
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if (rtp_parse_mp4_au(data, buf, len)) |
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return -1; |
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buf += data->au_headers_length_bytes + 2; |
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len -= data->au_headers_length_bytes + 2; |
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/* XXX: Fixme we only handle the case where rtp_parse_mp4_au define |
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one au_header */ |
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if (len < data->au_headers[0].size) |
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return AVERROR_INVALIDDATA; |
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if ((ret = av_new_packet(pkt, data->au_headers[0].size)) < 0) |
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return ret; |
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memcpy(pkt->data, buf, data->au_headers[0].size); |
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len -= data->au_headers[0].size; |
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buf += data->au_headers[0].size; |
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pkt->stream_index = st->index; |
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if (len > 0 && data->nb_au_headers > 1) { |
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data->buf_size = FFMIN(len, sizeof(data->buf)); |
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memcpy(data->buf, buf, data->buf_size); |
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data->cur_au_index = 1; |
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data->buf_pos = 0; |
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return 1; |
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} |
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return 0; |
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} |
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