falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
Browse Source

Merge commit '95e177eeb21f3e968aa9353bc69d1946966cc835' 

* commit '95e177eeb21f3e968aa9353bc69d1946966cc835':
  rtpdec: HEVC/H.265 support

Conflicts:
	Changelog
	libavformat/rtpdec_hevc.c
	libavformat/version.h

See: 96b2ba68c4
Merged-by: Michael Niedermayer <michaelni@gmx.at>
tags/n2.4
Michael Niedermayer 11 years ago
parent
dc81c0a0dc 95e177eeb2
commit
4bc4f6f170
3 changed files with 67 additions and 102 deletions
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. +1
    -1
      Changelog
  2. +65
    -100
      libavformat/rtpdec_hevc.c
  3. +1
    -1
      libavformat/version.h

+ 1
- 1
Changelog View File

@@ -9,7 +9,7 @@ version <next>:
- support for using metadata in stream specifiers in fftools
- LZMA compression support in TIFF decoder
- support for H.261 RTP payload format (RFC 4587)
- support for HEVC/H.265 RTP payload format (draft v6) - depacketizing
- HEVC/H.265 RTP payload format (draft v6) depacketizer
- added codecview filter to visualize information exported by some codecs
- matroska 3d support thorugh side data



+ 65
- 100
libavformat/rtpdec_hevc.c View File

@@ -17,61 +17,41 @@
* 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/avstring.h"

#include "avformat.h"
#include "rtpdec.h"

#define RTP_HEVC_PAYLOAD_HEADER_SIZE 2
#define RTP_HEVC_FU_HEADER_SIZE 1
#define RTP_HEVC_DONL_FIELDS_SIZE 2
#define HEVC_SPECIFIED_NAL_UNIT_TYPES 48
#define RTP_HEVC_PAYLOAD_HEADER_SIZE 2
#define RTP_HEVC_FU_HEADER_SIZE 1
#define RTP_HEVC_DONL_FIELD_SIZE 2
#define HEVC_SPECIFIED_NAL_UNIT_TYPES 48

/* SDP out-of-band signaling data */
struct PayloadContext {
/* SDP out-of-band signaling data */
int using_donl_field;
int profile_id;
/* debugging */
#ifdef DEBUG
int packets_received[HEVC_SPECIFIED_NAL_UNIT_TYPES];
#endif
};

#ifdef DEBUG
#define COUNT_HEVC_NAL_TYPE(data, nal_type) if (nal_type < HEVC_SPECIFIED_NAL_UNIT_TYPES) data->packets_received[(nal_type)]++
#else
#define COUNT_HEVC_NAL_TYPE(data, nal_type) do { } while (0)
#endif

static const uint8_t start_sequence[] = { 0x00, 0x00, 0x00, 0x01 };

static PayloadContext *hevc_new_context(void)
static av_cold PayloadContext *hevc_new_context(void)
{
return av_mallocz(sizeof(PayloadContext));
}

static av_cold void hevc_free_context(PayloadContext *data)
{
#ifdef DEBUG
int i;

for (i = 0; i < HEVC_SPECIFIED_NAL_UNIT_TYPES; i++) {
if (data->packets_received[i])
av_log(NULL, AV_LOG_DEBUG, "Received %d packets of NAL unit type %d\n",
data->packets_received[i], i);
}
#endif

av_free(data);
}

static av_cold int hevc_init(AVFormatContext *ctx, int st_index,
PayloadContext *data)
{
#ifdef DEBUG
av_log(ctx, AV_LOG_DEBUG, "hevc_init() for stream %d\n", st_index);
#endif
av_dlog(ctx, "hevc_init() for stream %d\n", st_index);

if (st_index < 0)
return 0;
@@ -82,23 +62,15 @@ static av_cold int hevc_init(AVFormatContext *ctx, int st_index,
}

static av_cold int hevc_sdp_parse_fmtp_config(AVFormatContext *s,
AVStream *stream,
PayloadContext *hevc_data,
char *attr, char *value)
AVStream *stream,
PayloadContext *hevc_data,
char *attr, char *value)
{

#ifdef DEBUG
av_log(s, AV_LOG_DEBUG, "SDP: fmtp value %s is %s\n", attr, value);
#endif

/* profile-space: 0-3 */
/* profile-id: 0-31 */
if (!strcmp(attr, "profile-id")) {
hevc_data->profile_id = atoi(value);

#ifdef DEBUG
av_log(s, AV_LOG_DEBUG, "SDP: found profile-id: %d\n", hevc_data->profile_id);
#endif
av_dlog(s, "SDP: found profile-id: %d\n", hevc_data->profile_id);
}

/* tier-flag: 0-1 */
@@ -124,22 +96,18 @@ static av_cold int hevc_sdp_parse_fmtp_config(AVFormatContext *s,
value MUST be greater than 0.
*/
if (!strcmp(attr, "sprop-max-don-diff")) {
if(atoi(value) > 0)
if (atoi(value) > 0)
hevc_data->using_donl_field = 1;

#ifdef DEBUG
av_log(s, AV_LOG_DEBUG, "SDP: found sprop-max-don-diff in SDP, DON field usage is: %d\n", hevc_data->using_donl_field);
#endif
av_dlog(s, "Found sprop-max-don-diff in SDP, DON field usage is: %d\n",
hevc_data->using_donl_field);
}

/* sprop-depack-buf-nalus: 0-32767 */
if (!strcmp(attr, "sprop-depack-buf-nalus")) {
if(atoi(value) > 0)
if (atoi(value) > 0)
hevc_data->using_donl_field = 1;

#ifdef DEBUG
av_log(s, AV_LOG_DEBUG, "SDP: found sprop-depack-buf-nalus in SDP, DON field usage is: %d\n", hevc_data->using_donl_field);
#endif
av_dlog(s, "Found sprop-depack-buf-nalus in SDP, DON field usage is: %d\n",
hevc_data->using_donl_field);
}

/* sprop-depack-buf-bytes: 0-4294967295 */
@@ -153,16 +121,12 @@ static av_cold int hevc_sdp_parse_fmtp_config(AVFormatContext *s,
}

static av_cold int hevc_parse_sdp_line(AVFormatContext *ctx, int st_index,
PayloadContext *hevc_data, const char *line)
PayloadContext *hevc_data, const char *line)
{
AVStream *current_stream;
AVCodecContext *codec;
const char *sdp_line_ptr = line;

#ifdef DEBUG
av_log(ctx, AV_LOG_DEBUG, "parse_hevc_sdp_line() got SDP line %s\n", line);
#endif

if (st_index < 0)
return 0;

@@ -173,9 +137,10 @@ static av_cold int hevc_parse_sdp_line(AVFormatContext *ctx, int st_index,
char str_video_width[50];
char *str_video_width_ptr = str_video_width;

/**
/*
* parse "a=framesize:96 320-240"
*/

/* ignore spaces */
while (*sdp_line_ptr && *sdp_line_ptr == ' ')
sdp_line_ptr++;
@@ -186,19 +151,19 @@ static av_cold int hevc_parse_sdp_line(AVFormatContext *ctx, int st_index,
while (*sdp_line_ptr && *sdp_line_ptr == ' ')
sdp_line_ptr++;
/* extract the actual video resolution description */
while (*sdp_line_ptr && *sdp_line_ptr != '-' && (str_video_width_ptr - str_video_width) < sizeof(str_video_width) - 1)
while (*sdp_line_ptr && *sdp_line_ptr != '-' &&
(str_video_width_ptr - str_video_width) < sizeof(str_video_width) - 1)
*str_video_width_ptr++ = *sdp_line_ptr++;
/* add trailing zero byte */
*str_video_width_ptr = '\0';

/* determine the width value */
codec->width = atoi(str_video_width);
// jump beyond the "-" and determine the height value
/* jump beyond the "-" and determine the height value */
codec->height = atoi(sdp_line_ptr + 1);
} else if (av_strstart(sdp_line_ptr, "fmtp:", &sdp_line_ptr)) {
return ff_parse_fmtp(ctx, current_stream, hevc_data, sdp_line_ptr, hevc_sdp_parse_fmtp_config);
} else if (av_strstart(sdp_line_ptr, "cliprect:", &sdp_line_ptr)) {
// could use this if we wanted.
return ff_parse_fmtp(ctx, current_stream, hevc_data, sdp_line_ptr,
hevc_sdp_parse_fmtp_config);
}

return 0;
@@ -213,10 +178,10 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
int tid, lid, nal_type;
int first_fragment, last_fragment, fu_type;
uint8_t new_nal_header[2];
int res=0;
int res = 0;

/* sanity check for size of input packet */
if (len < 3 /* 2 bytes header and 1 byte payload at least */) {
/* sanity check for size of input packet: 1 byte payload at least */
if (len < RTP_HEVC_PAYLOAD_HEADER_SIZE + 1) {
av_log(ctx, AV_LOG_ERROR, "Too short RTP/HEVC packet, got %d bytes\n", len);
return AVERROR_INVALIDDATA;
}
@@ -240,40 +205,35 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
tid = buf[1] & 0x07;

/* sanity check for correct layer ID */
if(lid){
if (lid) {
/* future scalable or 3D video coding extensions */
av_log(ctx, AV_LOG_ERROR, "Multi-layer HEVC coding is not supported yet, a patch is welcome\n");
avpriv_report_missing_feature(ctx, "Multi-layer HEVC coding\n");
return AVERROR_PATCHWELCOME;
}

/* sanity check for correct temporal ID */
if(!tid){
if (!tid) {
av_log(ctx, AV_LOG_ERROR, "Illegal temporal ID in RTP/HEVC packet\n");
return AVERROR_INVALIDDATA;
}

/* sanity check for correct NAL unit type */
if (nal_type > 50){
if (nal_type > 50) {
av_log(ctx, AV_LOG_ERROR, "Unsupported (HEVC) NAL type (%d)\n", nal_type);
return AVERROR_INVALIDDATA;
}

#ifdef DEBUG
av_log(ctx, AV_LOG_DEBUG, "hevc_handle_packet() got NAL type %d with %d bytes\n", nal_type, len);
#endif

switch(nal_type)
{
switch (nal_type) {
/* aggregated packets (AP) */
case 48:
/* pass the HEVC payload header */
buf += RTP_HEVC_PAYLOAD_HEADER_SIZE;
len -= RTP_HEVC_PAYLOAD_HEADER_SIZE;

/* pass the HEVC DONL fields */
if(rtp_hevc_ctx->using_donl_field){
buf += RTP_HEVC_DONL_FIELDS_SIZE;
len -= RTP_HEVC_DONL_FIELDS_SIZE;
/* pass the HEVC DONL field */
if (rtp_hevc_ctx->using_donl_field) {
buf += RTP_HEVC_DONL_FIELD_SIZE;
len -= RTP_HEVC_DONL_FIELD_SIZE;
}

/* fall-through */
@@ -287,6 +247,14 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
case 39:
/* single NAL unit packet */
default:
/* sanity check for size of input packet: 1 byte payload at least */
if (len < 1) {
av_log(ctx, AV_LOG_ERROR,
"Too short RTP/HEVC packet, got %d bytes of NAL unit type %d\n",
len, nal_type);
return AVERROR_INVALIDDATA;
}

/* create A/V packet */
if ((res = av_new_packet(pkt, sizeof(start_sequence) + len)) < 0)
return res;
@@ -295,8 +263,6 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
/* A/V packet: copy NAL unit data */
memcpy(pkt->data + sizeof(start_sequence), buf, len);

COUNT_HEVC_NAL_TYPE(rtp_hevc_ctx, nal_type);

break;
/* fragmentation unit (FU) */
case 49:
@@ -304,7 +270,9 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
buf += RTP_HEVC_PAYLOAD_HEADER_SIZE;
len -= RTP_HEVC_PAYLOAD_HEADER_SIZE;

/**
if (len < 1)
return AVERROR_INVALIDDATA;
/*
decode the FU header

0 1 2 3 4 5 6 7
@@ -317,22 +285,20 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
FuType: 6 bits
*/
first_fragment = buf[0] & 0x80;
last_fragment = buf[0] & 0x40;
fu_type = buf[0] & 0x3f;
last_fragment = buf[0] & 0x40;
fu_type = buf[0] & 0x3f;

/* pass the HEVC FU header */
buf += RTP_HEVC_FU_HEADER_SIZE;
len -= RTP_HEVC_FU_HEADER_SIZE;

/* pass the HEVC DONL fields */
if(rtp_hevc_ctx->using_donl_field){
buf += RTP_HEVC_DONL_FIELDS_SIZE;
len -= RTP_HEVC_DONL_FIELDS_SIZE;
/* pass the HEVC DONL field */
if (rtp_hevc_ctx->using_donl_field) {
buf += RTP_HEVC_DONL_FIELD_SIZE;
len -= RTP_HEVC_DONL_FIELD_SIZE;
}

#ifdef DEBUG
av_log(ctx, AV_LOG_DEBUG, " FU type %d with %d bytes\n", fu_type, len);
#endif
av_dlog(ctx, " FU type %d with %d bytes\n", fu_type, len);

if (len > 0) {
new_nal_header[0] = (rtp_pl[0] & 0x81) | (fu_type << 1);
@@ -340,7 +306,7 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx

/* start fragment vs. subsequent fragments */
if (first_fragment) {
if(!last_fragment){
if (!last_fragment) {
/* create A/V packet which is big enough */
if ((res = av_new_packet(pkt, sizeof(start_sequence) + sizeof(new_nal_header) + len)) < 0)
return res;
@@ -350,7 +316,7 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
memcpy(pkt->data + sizeof(start_sequence), new_nal_header, sizeof(new_nal_header));
/* A/V packet: copy NAL unit data */
memcpy(pkt->data + sizeof(start_sequence) + sizeof(new_nal_header), buf, len);
}else{
} else {
av_log(ctx, AV_LOG_ERROR, "Illegal combination of S and E bit in RTP/HEVC packet\n");
res = AVERROR_INVALIDDATA;
}
@@ -362,19 +328,18 @@ static int hevc_handle_packet(AVFormatContext *ctx, PayloadContext *rtp_hevc_ctx
memcpy(pkt->data, buf, len);
}
} else {
av_log(ctx, AV_LOG_ERROR, "Too short data for (HEVC) NAL unit, got %d bytes\n", len);
/* sanity check for size of input packet: 1 byte payload at least */
av_log(ctx, AV_LOG_ERROR,
"Too short RTP/HEVC packet, got %d bytes of NAL unit type %d\n",
len, nal_type);
res = AVERROR_INVALIDDATA;
}

if(!res){
COUNT_HEVC_NAL_TYPE(rtp_hevc_ctx, fu_type);
}

break;
/* PACI packet */
case 50:
/* Temporal scalability control information (TSCI) */
av_log(ctx, AV_LOG_ERROR, "PACI packets for RTP/HEVC are not supported yet, a patch is welcome\n");
avpriv_report_missing_feature(ctx, "PACI packets for RTP/HEVC\n");
res = AVERROR_PATCHWELCOME;
break;
}
@@ -398,7 +363,7 @@ RTPDynamicProtocolHandler ff_hevc_dynamic_handler = {
RTPDynamicProtocolHandler ff_h265_dynamic_handler = {
.enc_name = "H265",
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_H265,
.codec_id = AV_CODEC_ID_HEVC,
.init = hevc_init,
.parse_sdp_a_line = hevc_parse_sdp_line,
.alloc = hevc_new_context,


+ 1
- 1
libavformat/version.h View File

@@ -30,7 +30,7 @@
#include "libavutil/version.h"

#define LIBAVFORMAT_VERSION_MAJOR 56
#define LIBAVFORMAT_VERSION_MINOR 3
#define LIBAVFORMAT_VERSION_MINOR 4
#define LIBAVFORMAT_VERSION_MICRO 100

#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \


Write Preview
Loading…
Cancel
Save