* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#include "libavutil/dict.h"
+#include "libavutil/mathematics.h"
#include "avformat.h"
+#include "avio_internal.h"
#include "internal.h"
#include "riff.h"
#include "asf.h"
-#include "avio_internal.h"
-#include "libavutil/dict.h"
#undef NDEBUG
#include <assert.h>
#define ASF_INDEX_BLOCK 600
#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2
-#define ASF_PACKET_ERROR_CORRECTION_FLAGS (\
- ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
- ASF_PACKET_ERROR_CORRECTION_DATA_SIZE\
- )
+#define ASF_PACKET_ERROR_CORRECTION_FLAGS \
+ (ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
+ ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)
#if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0)
# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1
# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0
#endif
-#define ASF_PPI_PROPERTY_FLAGS (\
- ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \
- ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \
- ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \
- ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE \
- )
+#define ASF_PPI_PROPERTY_FLAGS \
+ (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \
+ ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \
+ ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \
+ ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE)
#define ASF_PPI_LENGTH_TYPE_FLAGS 0
# define ASF_PPI_SEQUENCE_FIELD_SIZE 0
#endif
-
#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1
#endif
# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0
#endif
-#define PACKET_HEADER_MIN_SIZE (\
- ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \
- ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \
- 1 + /*Length Type Flags*/ \
- 1 + /*Property Flags*/ \
- ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \
- ASF_PPI_SEQUENCE_FIELD_SIZE + \
- ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \
- 4 + /*Send Time Field*/ \
- 2 /*Duration Field*/ \
- )
-
+#define PACKET_HEADER_MIN_SIZE \
+ (ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \
+ ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \
+ 1 + /* Length Type Flags */ \
+ 1 + /* Property Flags */ \
+ ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \
+ ASF_PPI_SEQUENCE_FIELD_SIZE + \
+ ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \
+ 4 + /* Send Time Field */ \
+ 2) /* Duration Field */
// Replicated Data shall be at least 8 bytes long.
#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08
-#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD (\
- 1 + /*Stream Number*/ \
- ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
- ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
- ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
- ASF_PAYLOAD_REPLICATED_DATA_LENGTH \
- )
-
-#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS (\
- 1 + /*Stream Number*/ \
- ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
- ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
- ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
- ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \
- ASF_PAYLOAD_LENGTH_FIELD_SIZE \
- )
-
-#define SINGLE_PAYLOAD_DATA_LENGTH (\
- PACKET_SIZE - \
- PACKET_HEADER_MIN_SIZE - \
- PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
- )
-
-#define MULTI_PAYLOAD_CONSTANT (\
- PACKET_SIZE - \
- PACKET_HEADER_MIN_SIZE - \
- 1 - /*Payload Flags*/ \
- 2*PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
- )
-
-typedef struct {
+#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
+ (1 + /* Stream Number */ \
+ ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
+ ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
+ ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
+ ASF_PAYLOAD_REPLICATED_DATA_LENGTH)
+
+#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
+ (1 + /* Stream Number */ \
+ ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
+ ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
+ ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
+ ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \
+ ASF_PAYLOAD_LENGTH_FIELD_SIZE)
+
+#define SINGLE_PAYLOAD_DATA_LENGTH \
+ (PACKET_SIZE - \
+ PACKET_HEADER_MIN_SIZE - \
+ PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)
+
+#define MULTI_PAYLOAD_CONSTANT \
+ (PACKET_SIZE - \
+ PACKET_HEADER_MIN_SIZE - \
+ 1 - /* Payload Flags */ \
+ 2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)
+
+#define DATA_HEADER_SIZE 50
+
+typedef struct ASFStream {
+ int num;
+ unsigned char seq;
+ /* use for reading */
+ AVPacket pkt;
+ int frag_offset;
+ int timestamp;
+ int64_t duration;
+
+ int ds_span; /* descrambling */
+ int ds_packet_size;
+ int ds_chunk_size;
+
+ int64_t packet_pos;
+
+ uint16_t stream_language_index;
+
+ int palette_changed;
+ uint32_t palette[256];
+} ASFStream;
+
+typedef struct ASFContext {
uint32_t seqno;
int is_streamed;
ASFStream streams[128]; ///< it's max number and it's not that big
uint64_t data_offset; ///< beginning of the first data packet
int64_t last_indexed_pts;
- ASFIndex* index_ptr;
+ ASFIndex *index_ptr;
uint32_t nb_index_count;
uint32_t nb_index_memory_alloc;
uint16_t maximum_packet;
} ASFContext;
static const AVCodecTag codec_asf_bmp_tags[] = {
- { AV_CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
- { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
+ { AV_CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
+ { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
{ AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
- { AV_CODEC_ID_NONE, 0 },
+ { AV_CODEC_ID_NONE, 0 },
};
#define PREROLL_TIME 3100
}
/* write an asf chunk (only used in streaming case) */
-static void put_chunk(AVFormatContext *s, int type, int payload_length, int flags)
+static void put_chunk(AVFormatContext *s, int type,
+ int payload_length, int flags)
{
ASFContext *asf = s->priv_data;
AVIOContext *pb = s->pb;
length = payload_length + 8;
avio_wl16(pb, type);
- avio_wl16(pb, length); //size
- avio_wl32(pb, asf->seqno);//sequence number
- avio_wl16(pb, flags); /* unknown bytes */
- avio_wl16(pb, length); //size_confirm
+ avio_wl16(pb, length); // size
+ avio_wl32(pb, asf->seqno); // sequence number
+ avio_wl16(pb, flags); // unknown bytes
+ avio_wl16(pb, length); // size_confirm
asf->seqno++;
}
{
int64_t t;
- t = ti * INT64_C(10000000);
+ t = ti * INT64_C(10000000);
t += INT64_C(116444736000000000);
return t;
}
+static int32_t get_send_time(ASFContext *asf, int64_t pres_time, uint64_t *offset)
+{
+ int i;
+ int32_t send_time = 0;
+ *offset = asf->data_offset + DATA_HEADER_SIZE;
+ for (i = 0; i < asf->nb_index_count; i++) {
+ if (pres_time <= asf->index_ptr[i].send_time)
+ break;
+ send_time = asf->index_ptr[i].send_time;
+ *offset = asf->index_ptr[i].offset;
+ }
+
+ return send_time / 10000;
+}
+
+static int asf_write_markers(AVFormatContext *s)
+{
+ ASFContext *asf = s->priv_data;
+ AVIOContext *pb = s->pb;
+ int i;
+ AVRational scale = {1, 10000000};
+ int64_t hpos = put_header(pb, &ff_asf_marker_header);
+
+ put_guid(pb, &ff_asf_reserved_4); // ASF spec mandates this reserved value
+ avio_wl32(pb, s->nb_chapters); // markers count
+ avio_wl16(pb, 0); // ASF spec mandates 0 for this
+ avio_wl16(pb, 0); // name length 0, no name given
+
+ for (i = 0; i < s->nb_chapters; i++) {
+ AVChapter *c = s->chapters[i];
+ AVDictionaryEntry *t = av_dict_get(c->metadata, "title", NULL, 0);
+ int64_t pres_time = av_rescale_q(c->start, c->time_base, scale);
+ uint64_t offset;
+ int32_t send_time = get_send_time(asf, pres_time, &offset);
+ int len = 0;
+ uint8_t *buf;
+ AVIOContext *dyn_buf;
+ if (t) {
+ if (avio_open_dyn_buf(&dyn_buf) < 0)
+ return AVERROR(ENOMEM);
+ avio_put_str16le(dyn_buf, t->value);
+ len = avio_close_dyn_buf(dyn_buf, &buf);
+ }
+ avio_wl64(pb, offset); // offset of the packet with send_time
+ avio_wl64(pb, pres_time + PREROLL_TIME * 10000); // presentation time
+ avio_wl16(pb, 12 + len); // entry length
+ avio_wl32(pb, send_time); // send time
+ avio_wl32(pb, 0); // flags, should be 0
+ avio_wl32(pb, len / 2); // marker desc length in WCHARS!
+ if (t) {
+ avio_write(pb, buf, len); // marker desc
+ av_freep(&buf);
+ }
+ }
+ end_header(pb, hpos);
+ return 0;
+}
+
/* write the header (used two times if non streamed) */
-static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
+static int asf_write_header1(AVFormatContext *s, int64_t file_size,
+ int64_t data_chunk_size)
{
ASFContext *asf = s->priv_data;
AVIOContext *pb = s->pb;
ff_metadata_conv(&s->metadata, ff_asf_metadata_conv, NULL);
- tags[0] = av_dict_get(s->metadata, "title" , NULL, 0);
- tags[1] = av_dict_get(s->metadata, "author" , NULL, 0);
+ tags[0] = av_dict_get(s->metadata, "title", NULL, 0);
+ tags[1] = av_dict_get(s->metadata, "author", NULL, 0);
tags[2] = av_dict_get(s->metadata, "copyright", NULL, 0);
- tags[3] = av_dict_get(s->metadata, "comment" , NULL, 0);
- tags[4] = av_dict_get(s->metadata, "rating" , NULL, 0);
+ tags[3] = av_dict_get(s->metadata, "comment", NULL, 0);
+ tags[4] = av_dict_get(s->metadata, "rating", NULL, 0);
- duration = asf->duration + PREROLL_TIME * 10000;
- has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
- metadata_count = s->metadata ? s->metadata->count : 0;
+ duration = asf->duration + PREROLL_TIME * 10000;
+ has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
+ metadata_count = av_dict_count(s->metadata);
bit_rate = 0;
- for(n=0;n<s->nb_streams;n++) {
+ for (n = 0; n < s->nb_streams; n++) {
enc = s->streams[n]->codec;
avpriv_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
/* file header */
header_offset = avio_tell(pb);
- hpos = put_header(pb, &ff_asf_file_header);
+ hpos = put_header(pb, &ff_asf_file_header);
put_guid(pb, &ff_asf_my_guid);
avio_wl64(pb, file_size);
file_time = 0;
avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
avio_wl64(pb, PREROLL_TIME); /* start time stamp */
- avio_wl32(pb, (asf->is_streamed || !pb->seekable ) ? 3 : 2); /* ??? */
+ avio_wl32(pb, (asf->is_streamed || !pb->seekable) ? 3 : 2); /* ??? */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, s->packet_size); /* packet size */
avio_wl32(pb, bit_rate); /* Nominal data rate in bps */
}
end_header(pb, hpos);
}
-
+ /* chapters using ASF markers */
+ if (!asf->is_streamed && s->nb_chapters) {
+ int ret;
+ if (ret = asf_write_markers(s))
+ return ret;
+ }
/* stream headers */
- for(n=0;n<s->nb_streams;n++) {
+ for (n = 0; n < s->nb_streams; n++) {
int64_t es_pos;
// ASFStream *stream = &asf->streams[n];
- enc = s->streams[n]->codec;
+ enc = s->streams[n]->codec;
asf->streams[n].num = n + 1;
asf->streams[n].seq = 0;
-
- switch(enc->codec_type) {
+ switch (enc->codec_type) {
case AVMEDIA_TYPE_AUDIO:
wav_extra_size = 0;
- extra_size = 18 + wav_extra_size;
- extra_size2 = 8;
+ extra_size = 18 + wav_extra_size;
+ extra_size2 = 8;
break;
default:
case AVMEDIA_TYPE_VIDEO:
wav_extra_size = enc->extradata_size;
- extra_size = 0x33 + wav_extra_size;
- extra_size2 = 0;
+ extra_size = 0x33 + wav_extra_size;
+ extra_size2 = 0;
break;
}
}
/* ERROR Correction */
avio_w8(pb, 0x01);
- if(enc->codec_id == AV_CODEC_ID_ADPCM_G726 || !enc->block_align){
+ if (enc->codec_id == AV_CODEC_ID_ADPCM_G726 || !enc->block_align) {
avio_wl16(pb, 0x0190);
avio_wl16(pb, 0x0190);
- }else{
+ } else {
avio_wl16(pb, enc->block_align);
avio_wl16(pb, enc->block_align);
}
hpos = put_header(pb, &ff_asf_codec_comment_header);
put_guid(pb, &ff_asf_codec_comment1_header);
avio_wl32(pb, s->nb_streams);
- for(n=0;n<s->nb_streams;n++) {
- AVCodec *p;
+ for (n = 0; n < s->nb_streams; n++) {
+ const AVCodecDescriptor *codec_desc;
const char *desc;
- int len;
- uint8_t *buf;
- AVIOContext *dyn_buf;
- enc = s->streams[n]->codec;
- p = avcodec_find_encoder(enc->codec_id);
+ enc = s->streams[n]->codec;
+ codec_desc = avcodec_descriptor_get(enc->codec_id);
- if(enc->codec_type == AVMEDIA_TYPE_AUDIO)
+ if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wl16(pb, 2);
- else if(enc->codec_type == AVMEDIA_TYPE_VIDEO)
+ else if (enc->codec_type == AVMEDIA_TYPE_VIDEO)
avio_wl16(pb, 1);
else
avio_wl16(pb, -1);
- if(enc->codec_id == AV_CODEC_ID_WMAV2)
+ if (enc->codec_id == AV_CODEC_ID_WMAV2)
desc = "Windows Media Audio V8";
else
- desc = p ? p->name : enc->codec_name;
+ desc = codec_desc ? codec_desc->name : NULL;
- if ( avio_open_dyn_buf(&dyn_buf) < 0)
- return AVERROR(ENOMEM);
+ if (desc) {
+ AVIOContext *dyn_buf;
+ uint8_t *buf;
+ int len;
- avio_put_str16le(dyn_buf, desc);
- len = avio_close_dyn_buf(dyn_buf, &buf);
- avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
+ if (avio_open_dyn_buf(&dyn_buf) < 0)
+ return AVERROR(ENOMEM);
- avio_write(pb, buf, len);
- av_freep(&buf);
+ avio_put_str16le(dyn_buf, desc);
+ len = avio_close_dyn_buf(dyn_buf, &buf);
+ avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
- avio_wl16(pb, 0); /* no parameters */
+ avio_write(pb, buf, len);
+ av_freep(&buf);
+ } else
+ avio_wl16(pb, 0);
+ avio_wl16(pb, 0); /* no parameters */
/* id */
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
avio_wl16(pb, 4);
avio_wl32(pb, enc->codec_tag);
}
- if(!enc->codec_tag)
+ if (!enc->codec_tag)
return -1;
}
end_header(pb, hpos);
/* patch the header size fields */
- cur_pos = avio_tell(pb);
+ cur_pos = avio_tell(pb);
header_size = cur_pos - header_offset;
if (asf->is_streamed) {
- header_size += 8 + 30 + 50;
+ header_size += 8 + 30 + DATA_HEADER_SIZE;
avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
avio_wl16(pb, header_size);
avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
avio_wl16(pb, header_size);
- header_size -= 8 + 30 + 50;
+ header_size -= 8 + 30 + DATA_HEADER_SIZE;
}
header_size += 24 + 6;
avio_seek(pb, header_offset - 14, SEEK_SET);
s->packet_size = PACKET_SIZE;
asf->nb_packets = 0;
- asf->last_indexed_pts = 0;
- asf->index_ptr = av_malloc( sizeof(ASFIndex) * ASF_INDEX_BLOCK );
+ asf->last_indexed_pts = 0;
+ asf->index_ptr = av_malloc(sizeof(ASFIndex) * ASF_INDEX_BLOCK);
asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
- asf->nb_index_count = 0;
- asf->maximum_packet = 0;
+ asf->nb_index_count = 0;
+ asf->maximum_packet = 0;
- /* the data-chunk-size has to be 50, which is data_size - asf->data_offset
- * at the moment this function is done. It is needed to use asf as
- * streamable format. */
- if (asf_write_header1(s, 0, 50) < 0) {
+ /* the data-chunk-size has to be 50 (DATA_HEADER_SIZE), which is
+ * data_size - asf->data_offset at the moment this function is done.
+ * It is needed to use asf as a streamable format. */
+ if (asf_write_header1(s, 0, DATA_HEADER_SIZE) < 0) {
//av_free(asf);
+ av_freep(&asf->index_ptr);
return -1;
}
avio_flush(s->pb);
- asf->packet_nb_payloads = 0;
+ asf->packet_nb_payloads = 0;
asf->packet_timestamp_start = -1;
- asf->packet_timestamp_end = -1;
+ asf->packet_timestamp_end = -1;
ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
- NULL, NULL, NULL, NULL);
+ NULL, NULL, NULL, NULL);
return 0;
}
return asf_write_header(s);
}
-static int put_payload_parsing_info(
- AVFormatContext *s,
- unsigned int sendtime,
- unsigned int duration,
- int nb_payloads,
- int padsize
- )
+static int put_payload_parsing_info(AVFormatContext *s,
+ unsigned sendtime, unsigned duration,
+ int nb_payloads, int padsize)
{
ASFContext *asf = s->priv_data;
AVIOContext *pb = s->pb;
int ppi_size, i;
- int64_t start= avio_tell(pb);
+ int64_t start = avio_tell(pb);
int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS;
padsize -= PACKET_HEADER_MIN_SIZE;
- if(asf->multi_payloads_present)
+ if (asf->multi_payloads_present)
padsize--;
- assert(padsize>=0);
+ assert(padsize >= 0);
avio_w8(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS);
- for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++){
+ for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++)
avio_w8(pb, 0x0);
- }
if (asf->multi_payloads_present)
iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT;
assert(asf->packet_timestamp_end >= asf->packet_timestamp_start);
- if (asf->is_streamed) {
+ if (asf->is_streamed)
put_chunk(s, 0x4424, s->packet_size, 0);
- }
- packet_hdr_size = put_payload_parsing_info(
- s,
- asf->packet_timestamp_start,
- asf->packet_timestamp_end - asf->packet_timestamp_start,
- asf->packet_nb_payloads,
- asf->packet_size_left
- );
+ packet_hdr_size = put_payload_parsing_info(s,
+ asf->packet_timestamp_start,
+ asf->packet_timestamp_end -
+ asf->packet_timestamp_start,
+ asf->packet_nb_payloads,
+ asf->packet_size_left);
packet_filled_size = PACKET_SIZE - asf->packet_size_left;
assert(packet_hdr_size <= asf->packet_size_left);
avio_flush(s->pb);
asf->nb_packets++;
- asf->packet_nb_payloads = 0;
+ asf->packet_nb_payloads = 0;
asf->packet_timestamp_start = -1;
- asf->packet_timestamp_end = -1;
+ asf->packet_timestamp_end = -1;
ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
- NULL, NULL, NULL, NULL);
+ NULL, NULL, NULL, NULL);
}
-static void put_payload_header(
- AVFormatContext *s,
- ASFStream *stream,
- int presentation_time,
- int m_obj_size,
- int m_obj_offset,
- int payload_len,
- int flags
- )
+static void put_payload_header(AVFormatContext *s, ASFStream *stream,
+ int presentation_time, int m_obj_size,
+ int m_obj_offset, int payload_len, int flags)
{
ASFContext *asf = s->priv_data;
AVIOContext *pb = &asf->pb;
val |= ASF_PL_FLAG_KEY_FRAME;
avio_w8(pb, val);
- avio_w8(pb, stream->seq); //Media object number
- avio_wl32(pb, m_obj_offset); //Offset Into Media Object
+ avio_w8(pb, stream->seq); // Media object number
+ avio_wl32(pb, m_obj_offset); // Offset Into Media Object
// Replicated Data shall be at least 8 bytes long.
// The first 4 bytes of data shall contain the
// Presentation Time for the media object that the payload belongs to.
avio_w8(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH);
- avio_wl32(pb, m_obj_size); //Replicated Data - Media Object Size
- avio_wl32(pb, presentation_time);//Replicated Data - Presentation Time
+ avio_wl32(pb, m_obj_size); // Replicated Data - Media Object Size
+ avio_wl32(pb, presentation_time); // Replicated Data - Presentation Time
- if (asf->multi_payloads_present){
- avio_wl16(pb, payload_len); //payload length
+ if (asf->multi_payloads_present) {
+ avio_wl16(pb, payload_len); // payload length
}
}
-static void put_frame(
- AVFormatContext *s,
- ASFStream *stream,
- AVStream *avst,
- int timestamp,
- const uint8_t *buf,
- int m_obj_size,
- int flags
- )
+static void put_frame(AVFormatContext *s, ASFStream *stream, AVStream *avst,
+ int timestamp, const uint8_t *buf,
+ int m_obj_size, int flags)
{
ASFContext *asf = s->priv_data;
int m_obj_offset, payload_len, frag_len1;
asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT);
asf->packet_size_left = PACKET_SIZE;
- if (asf->multi_payloads_present){
+ if (asf->multi_payloads_present) {
frag_len1 = MULTI_PAYLOAD_CONSTANT - 1;
- }
- else {
+ } else {
frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH;
}
asf->packet_timestamp_start = timestamp;
- }
- else {
+ } else {
// multi payloads
- frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS - PACKET_HEADER_MIN_SIZE - 1;
+ frag_len1 = asf->packet_size_left -
+ PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS -
+ PACKET_HEADER_MIN_SIZE - 1;
- if(frag_len1 < payload_len && avst->codec->codec_type == AVMEDIA_TYPE_AUDIO){
+ if (frag_len1 < payload_len &&
+ avst->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
flush_packet(s);
continue;
}
if (payload_len > frag_len1)
payload_len = frag_len1;
else if (payload_len == (frag_len1 - 1))
- payload_len = frag_len1 - 2; //additional byte need to put padding length
+ payload_len = frag_len1 - 2; // additional byte need to put padding length
- put_payload_header(s, stream, timestamp+PREROLL_TIME, m_obj_size, m_obj_offset, payload_len, flags);
+ put_payload_header(s, stream, timestamp + PREROLL_TIME,
+ m_obj_size, m_obj_offset, payload_len, flags);
avio_write(&asf->pb, buf, payload_len);
if (asf->multi_payloads_present)
payload_len = 0;
}
m_obj_offset += payload_len;
- buf += payload_len;
+ buf += payload_len;
if (!asf->multi_payloads_present)
flush_packet(s);
static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
{
ASFContext *asf = s->priv_data;
+ AVIOContext *pb = s->pb;
ASFStream *stream;
int64_t duration;
AVCodecContext *codec;
- int64_t packet_st,pts;
- int start_sec,i;
- int flags= pkt->flags;
+ int64_t packet_st, pts;
+ int start_sec, i;
+ int flags = pkt->flags;
+ uint64_t offset = avio_tell(pb);
- codec = s->streams[pkt->stream_index]->codec;
+ codec = s->streams[pkt->stream_index]->codec;
stream = &asf->streams[pkt->stream_index];
- if(codec->codec_type == AVMEDIA_TYPE_AUDIO)
+ if (codec->codec_type == AVMEDIA_TYPE_AUDIO)
flags &= ~AV_PKT_FLAG_KEY;
pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts;
assert(pts != AV_NOPTS_VALUE);
- duration = pts * 10000;
- asf->duration= FFMAX(asf->duration, duration + pkt->duration * 10000);
+ duration = pts * 10000;
+ asf->duration = FFMAX(asf->duration, duration + pkt->duration * 10000);
packet_st = asf->nb_packets;
- put_frame(s, stream, s->streams[pkt->stream_index], pkt->dts, pkt->data, pkt->size, flags);
+ put_frame(s, stream, s->streams[pkt->stream_index],
+ pkt->dts, pkt->data, pkt->size, flags);
/* check index */
if ((!asf->is_streamed) && (flags & AV_PKT_FLAG_KEY)) {
start_sec = (int)(duration / INT64_C(10000000));
if (start_sec != (int)(asf->last_indexed_pts / INT64_C(10000000))) {
- for(i=asf->nb_index_count;i<start_sec;i++) {
- if (i>=asf->nb_index_memory_alloc) {
+ for (i = asf->nb_index_count; i < start_sec; i++) {
+ if (i >= asf->nb_index_memory_alloc) {
+ int err;
asf->nb_index_memory_alloc += ASF_INDEX_BLOCK;
- asf->index_ptr = (ASFIndex*)av_realloc( asf->index_ptr, sizeof(ASFIndex) * asf->nb_index_memory_alloc );
+ if ((err = av_reallocp_array(&asf->index_ptr,
+ asf->nb_index_memory_alloc,
+ sizeof(*asf->index_ptr))) < 0) {
+ asf->nb_index_memory_alloc = 0;
+ return err;
+ }
}
// store
asf->index_ptr[i].packet_number = (uint32_t)packet_st;
- asf->index_ptr[i].packet_count = (uint16_t)(asf->nb_packets-packet_st);
- asf->maximum_packet = FFMAX(asf->maximum_packet, (uint16_t)(asf->nb_packets-packet_st));
+ asf->index_ptr[i].packet_count = (uint16_t)(asf->nb_packets - packet_st);
+ asf->index_ptr[i].send_time = start_sec * INT64_C(10000000);
+ asf->index_ptr[i].offset = offset;
+ asf->maximum_packet = FFMAX(asf->maximum_packet,
+ (uint16_t)(asf->nb_packets - packet_st));
}
- asf->nb_index_count = start_sec;
+ asf->nb_index_count = start_sec;
asf->last_indexed_pts = duration;
}
}
return 0;
}
-//
-static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count)
+static int asf_write_index(AVFormatContext *s, ASFIndex *index,
+ uint16_t max, uint32_t count)
{
AVIOContext *pb = s->pb;
int i;
put_guid(pb, &ff_asf_simple_index_header);
- avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2)*count);
+ avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2) * count);
put_guid(pb, &ff_asf_my_guid);
avio_wl64(pb, ASF_INDEXED_INTERVAL);
avio_wl32(pb, max);
avio_wl32(pb, count);
- for(i=0; i<count; i++) {
+ for (i = 0; i < count; i++) {
avio_wl32(pb, index[i].packet_number);
avio_wl16(pb, index[i].packet_count);
}
static int asf_write_trailer(AVFormatContext *s)
{
ASFContext *asf = s->priv_data;
- int64_t file_size,data_size;
+ int64_t file_size, data_size;
/* flush the current packet */
if (asf->pb.buf_ptr > asf->pb.buffer)
/* write index */
data_size = avio_tell(s->pb);
- if ((!asf->is_streamed) && (asf->nb_index_count != 0)) {
+ if ((!asf->is_streamed) && (asf->nb_index_count != 0))
asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->nb_index_count);
- }
avio_flush(s->pb);
if (asf->is_streamed || !s->pb->seekable) {
asf_write_header1(s, file_size, data_size - asf->data_offset);
}
- avio_flush(s->pb);
av_free(asf->index_ptr);
return 0;
}
.write_packet = asf_write_packet,
.write_trailer = asf_write_trailer,
.flags = AVFMT_GLOBALHEADER,
- .codec_tag = (const AVCodecTag* const []){
+ .codec_tag = (const AVCodecTag * const []) {
codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0
},
};
-#endif
+#endif /* CONFIG_ASF_MUXER */
#if CONFIG_ASF_STREAM_MUXER
AVOutputFormat ff_asf_stream_muxer = {
.write_packet = asf_write_packet,
.write_trailer = asf_write_trailer,
.flags = AVFMT_GLOBALHEADER,
- .codec_tag = (const AVCodecTag* const []){
+ .codec_tag = (const AVCodecTag * const []) {
codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, 0
},
};
-#endif //CONFIG_ASF_STREAM_MUXER
+#endif /* CONFIG_ASF_STREAM_MUXER */
projects / ffmpeg / blobdiff