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-- aliases and defaults for Ogg subtypes (opus, spx)
-- HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
-- avplay now exits by default at the end of playback
-- XCB-based screen-grabber
-- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
-- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
+- nvenc encoder
+- 10bit spp filter
+- colorlevels filter
+- RIFX format for *.wav files
- RTP/mpegts muxer
-- VP8 in Ogg demuxing
+- non continuous cache protocol support
+- tblend filter
+- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
+- Camellia symmetric block cipher
- OpenH264 encoder wrapper
+- VOC seeking support
+- Closed caption Decoder
+- fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
+- showpalette filter
+- Twofish symmetric block cipher
- Support DNx100 (960x720@8)
- - RTP parser for loss tolerant payload format for MP3 audio (RFC 5219)
+- eq2 filter ported from libmpcodecs as eq filter
+- removed libmpcodecs
+- Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
+- ported softpulldown filter from libmpcodecs as repeatfields filter
+- dcshift filter
++- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
+- RTP depacketizer for AC3 payload format (RFC 4184)
+- palettegen and paletteuse filters
+- VP9 RTP payload format (draft 0) experimental depacketizer
+- DV RTP payload format (RFC 6469) depacketizer
- DXVA2-accelerated HEVC decoding
- AAC ELD 480 decoding
- Intel QSV-accelerated H.264 decoding
--- /dev/null
- * This file is part of Libav.
+ /*
+ * RTP parser for loss tolerant payload format for MP3 audio (RFC 5219)
+ * Copyright (c) 2015 Gilles Chanteperdrix <gch@xenomai.org>
+ *
- * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+ *
- * Libav is distributed in the hope that it will be useful,
++ * 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.
+ *
- * License along with Libav; if not, write to the Free Software
++ * 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 "libavutil/attributes.h"
+ #include "libavutil/intreadwrite.h"
+
+ #include "rtpdec_formats.h"
+
+ struct PayloadContext {
+ unsigned adu_size;
+ unsigned cur_size;
+ uint32_t timestamp;
+ uint8_t *split_buf;
+ int split_pos, split_buf_size, split_pkts;
+ AVIOContext *fragment;
+ };
+
+ static av_cold int mpa_robust_init(AVFormatContext *ctx, int st_index,
+ PayloadContext *data)
+ {
+ if (st_index < 0)
+ return 0;
+ ctx->streams[st_index]->need_parsing = AVSTREAM_PARSE_HEADERS;
+ return 0;
+ }
+
+ static PayloadContext *mpa_robust_new_context(void)
+ {
+ return av_mallocz(sizeof(PayloadContext));
+ }
+
+ static inline void free_fragment(PayloadContext *data)
+ {
+ if (data->fragment) {
+ uint8_t *p;
+ avio_close_dyn_buf(data->fragment, &p);
+ av_free(p);
+ data->fragment = NULL;
+ }
+ }
+
+ static void mpa_robust_free_context(PayloadContext *data)
+ {
+ free_fragment(data);
+ av_free(data->split_buf);
+ av_free(data);
+ }
+
+ static int mpa_robust_parse_rtp_header(AVFormatContext *ctx,
+ const uint8_t *buf, int len,
+ unsigned *adu_size, unsigned *cont)
+ {
+ unsigned header_size;
+
+ if (len < 2) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid %d bytes packet\n", len);
+ return AVERROR_INVALIDDATA;
+ }
+
+ *cont = !!(buf[0] & 0x80);
+ if (!(buf[0] & 0x40)) {
+ header_size = 1;
+ *adu_size = buf[0] & ~0xc0;
+ } else {
+ header_size = 2;
+ *adu_size = AV_RB16(buf) & ~0xc000;
+ }
+
+ return header_size;
+ }
+
+ static int mpa_robust_parse_packet(AVFormatContext *ctx, PayloadContext *data,
+ AVStream *st, AVPacket *pkt,
+ uint32_t *timestamp, const uint8_t *buf,
+ int len, uint16_t seq, int flags)
+ {
+ unsigned adu_size, continuation;
+ int err, header_size;
+
+ if (!buf) {
+ buf = &data->split_buf[data->split_pos];
+ len = data->split_buf_size - data->split_pos;
+
+ header_size = mpa_robust_parse_rtp_header(ctx, buf, len, &adu_size,
+ &continuation);
+ if (header_size < 0) {
+ av_freep(&data->split_buf);
+ return header_size;
+ }
+ buf += header_size;
+ len -= header_size;
+
+ if (continuation || adu_size > len) {
+ av_freep(&data->split_buf);
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (av_new_packet(pkt, adu_size)) {
+ av_log(ctx, AV_LOG_ERROR, "Out of memory.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pkt->stream_index = st->index;
+ memcpy(pkt->data, buf, adu_size);
+
+ data->split_pos += adu_size;
+
+ if (data->split_pos == data->split_buf_size) {
+ av_freep(&data->split_buf);
+ return 0;
+ }
+
+ return 1;
+ }
+
+
+ header_size = mpa_robust_parse_rtp_header(ctx, buf, len, &adu_size,
+ &continuation);
+ if (header_size < 0)
+ return header_size;
+
+ buf += header_size;
+ len -= header_size;
+
+ if (!continuation && adu_size <= len) {
+ /* One or more complete frames */
+
+ if (av_new_packet(pkt, adu_size)) {
+ av_log(ctx, AV_LOG_ERROR, "Out of memory.\n");
+ return AVERROR(ENOMEM);
+ }
+
+ pkt->stream_index = st->index;
+ memcpy(pkt->data, buf, adu_size);
+
+ buf += adu_size;
+ len -= adu_size;
+ if (len) {
+ data->split_buf_size = len;
+ data->split_buf = av_malloc(data->split_buf_size);
+ data->split_pos = 0;
+ if (!data->split_buf) {
+ av_log(ctx, AV_LOG_ERROR, "Out of memory.\n");
+ av_free_packet(pkt);
+ return AVERROR(ENOMEM);
+ }
+ memcpy(data->split_buf, buf, data->split_buf_size);
+ return 1;
+ }
+ return 0;
+ } else if (!continuation) { /* && adu_size > len */
+ /* First fragment */
+ free_fragment(data);
+
+ data->adu_size = adu_size;
+ data->cur_size = len;
+ data->timestamp = *timestamp;
+
+ err = avio_open_dyn_buf(&data->fragment);
+ if (err < 0)
+ return err;
+
+ avio_write(data->fragment, buf, len);
+ return AVERROR(EAGAIN);
+ }
+ /* else continuation == 1 */
+
+ /* Fragment other than first */
+ if (!data->fragment) {
+ av_log(ctx, AV_LOG_WARNING,
+ "Received packet without a start fragment; dropping.\n");
+ return AVERROR(EAGAIN);
+ }
+ if (adu_size = data->adu_size ||
+ data->timestamp != *timestamp) {
+ free_fragment(data);
+ av_log(ctx, AV_LOG_ERROR, "Invalid packet received\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ avio_write(data->fragment, buf, len);
+ data->cur_size += len;
+
+ if (data->cur_size < data->adu_size)
+ return AVERROR(EAGAIN);
+
+ err = ff_rtp_finalize_packet(pkt, &data->fragment, st->index);
+ if (err < 0) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Error occurred when getting fragment buffer.\n");
+ return err;
+ }
+
+ return 0;
+ }
+
+ RTPDynamicProtocolHandler ff_mpeg_audio_robust_dynamic_handler = {
+ .codec_type = AVMEDIA_TYPE_AUDIO,
+ .codec_id = AV_CODEC_ID_MP3ADU,
+ .init = mpa_robust_init,
+ .alloc = mpa_robust_new_context,
+ .free = mpa_robust_free_context,
+ .parse_packet = mpa_robust_parse_packet,
+ .enc_name = "mpa-robust",
+ };
projects / ffmpeg / commitdiff