diff mbox series

[FFmpeg-devel,v4,2/2] avformat/rtmpproto: support enhanced rtmp

Message ID 20230828020035.83831-2-lq@chinaffmpeg.org
State New
Headers show
Series [FFmpeg-devel,v4,1/2] avformat/rtmppkt: add ff_amf_write_array for write | expand

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Commit Message

Steven Liu Aug. 28, 2023, 2 a.m. UTC
add option named rtmp_enhanced_codec,
it would support hvc1,av01,vp09 now,
the fourcc is using Array of strings.

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
---
 doc/protocols.texi      | 11 +++++++++++
 libavformat/rtmpproto.c | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

Comments

Marton Balint Aug. 28, 2023, 7:33 p.m. UTC | #1
On Mon, 28 Aug 2023, Steven Liu wrote:

> add option named rtmp_enhanced_codec,
> it would support hvc1,av01,vp09 now,
> the fourcc is using Array of strings.
>
> Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
> ---
> doc/protocols.texi      | 11 +++++++++++
> libavformat/rtmpproto.c | 34 ++++++++++++++++++++++++++++++++++
> 2 files changed, 45 insertions(+)
>
> diff --git a/doc/protocols.texi b/doc/protocols.texi
> index b3fad55591..c7637c11c9 100644
> --- a/doc/protocols.texi
> +++ b/doc/protocols.texi
> @@ -896,6 +896,17 @@ be named, by prefixing the type with 'N' and specifying the name before
> the value (i.e. @code{NB:myFlag:1}). This option may be used multiple
> times to construct arbitrary AMF sequences.
>
> +@item rtmp_enhanced_codecs
> +Specify the list of codecs the client advertises to support in an
> +enhanced RTMP stream. This option should be set to a comma separated
> +list of fourcc values, like @code{hvc1,av01,vp09} for multiple codecs
> +or @code{hvc1} for only one codec. The specified list will be presented
> +in the "fourCcLive" property of the Connect Command Message.
> +
> +This option should set a string like @code{hvc1,av01,vp09}
> +for multiple codecs, or @code{hvc1} for only one codec,
> +set codec fourcc into fourCcLive property into Connect Command Message,

This paragraph looks like some unintetional leftover, as the same 
information is there in the earlier paragraph.

Regards,
Marton

> +
> @item rtmp_flashver
> Version of the Flash plugin used to run the SWF player. The default
> is LNX 9,0,124,2. (When publishing, the default is FMLE/3.0 (compatible;
> diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
> index f0ef223f05..98718bc6da 100644
> --- a/libavformat/rtmpproto.c
> +++ b/libavformat/rtmpproto.c
> @@ -127,6 +127,7 @@ typedef struct RTMPContext {
>     int           nb_streamid;                ///< The next stream id to return on createStream calls
>     double        duration;                   ///< Duration of the stream in seconds as returned by the server (only valid if non-zero)
>     int           tcp_nodelay;                ///< Use TCP_NODELAY to disable Nagle's algorithm if set to 1
> +    char          *enhanced_codecs;           ///< codec list in enhanced rtmp
>     char          username[50];
>     char          password[50];
>     char          auth_params[500];
> @@ -336,6 +337,38 @@ static int gen_connect(URLContext *s, RTMPContext *rt)
>     ff_amf_write_field_name(&p, "app");
>     ff_amf_write_string2(&p, rt->app, rt->auth_params);
>
> +    if (rt->enhanced_codecs) {
> +        uint32_t list_len = 0;
> +        char *fourcc_data = rt->enhanced_codecs;
> +        int fourcc_str_len = strlen(fourcc_data);
> +
> +        // check the string, fourcc + ',' + ...  + end fourcc correct length should be (4+1)*n+4
> +        if ((fourcc_str_len + 1) % 5 != 0) {
> +            av_log(s, AV_LOG_ERROR, "Malformed rtmp_enhanched_codecs, "
> +                   "should be of the form hvc1[,av01][,vp09][,...]\n");
> +            return AVERROR(EINVAL);
> +        }
> +
> +        list_len = (fourcc_str_len + 1) / 5;
> +        ff_amf_write_field_name(&p, "fourCcList");
> +        ff_amf_write_array_start(&p, list_len);
> +
> +        while(fourcc_data - rt->enhanced_codecs < fourcc_str_len) {
> +            unsigned char fourcc[5];
> +            if (!strncmp(fourcc_data, "hvc1", 4) ||
> +                !strncmp(fourcc_data, "av01", 4) ||
> +                !strncmp(fourcc_data, "vp09", 4)) {
> +                    av_strlcpy(fourcc, fourcc_data, sizeof(fourcc));
> +                    ff_amf_write_string(&p, fourcc);
> +            } else {
> +                    av_log(s, AV_LOG_ERROR, "Unsupported codec fourcc, %.*s\n", 4, fourcc_data);
> +                    return AVERROR_PATCHWELCOME;
> +            }
> +
> +            fourcc_data += 5;
> +        }
> +    }
> +
>     if (!rt->is_input) {
>         ff_amf_write_field_name(&p, "type");
>         ff_amf_write_string(&p, "nonprivate");
> @@ -3104,6 +3137,7 @@ static const AVOption rtmp_options[] = {
>     {"rtmp_conn", "Append arbitrary AMF data to the Connect message", OFFSET(conn), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
>     {"rtmp_flashver", "Version of the Flash plugin used to run the SWF player.", OFFSET(flashver), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
>     {"rtmp_flush_interval", "Number of packets flushed in the same request (RTMPT only).", OFFSET(flush_interval), AV_OPT_TYPE_INT, {.i64 = 10}, 0, INT_MAX, ENC},
> +    {"rtmp_enhanced_codecs", "Specify the codec(s) to use in an enhanced rtmp live stream", OFFSET(enhanced_codecs), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, ENC},
>     {"rtmp_live", "Specify that the media is a live stream.", OFFSET(live), AV_OPT_TYPE_INT, {.i64 = -2}, INT_MIN, INT_MAX, DEC, "rtmp_live"},
>     {"any", "both", 0, AV_OPT_TYPE_CONST, {.i64 = -2}, 0, 0, DEC, "rtmp_live"},
>     {"live", "live stream", 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, DEC, "rtmp_live"},
> -- 
> 2.40.0
>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
Steven Liu Aug. 29, 2023, 1:06 a.m. UTC | #2
Marton Balint <cus@passwd.hu> 于2023年8月29日周二 03:35写道:
Hi Marton,
>
>
>
> On Mon, 28 Aug 2023, Steven Liu wrote:
>
> > add option named rtmp_enhanced_codec,
> > it would support hvc1,av01,vp09 now,
> > the fourcc is using Array of strings.
> >
> > Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
> > ---
> > doc/protocols.texi      | 11 +++++++++++
> > libavformat/rtmpproto.c | 34 ++++++++++++++++++++++++++++++++++
> > 2 files changed, 45 insertions(+)
> >
> > diff --git a/doc/protocols.texi b/doc/protocols.texi
> > index b3fad55591..c7637c11c9 100644
> > --- a/doc/protocols.texi
> > +++ b/doc/protocols.texi
> > @@ -896,6 +896,17 @@ be named, by prefixing the type with 'N' and specifying the name before
> > the value (i.e. @code{NB:myFlag:1}). This option may be used multiple
> > times to construct arbitrary AMF sequences.
> >
> > +@item rtmp_enhanced_codecs
> > +Specify the list of codecs the client advertises to support in an
> > +enhanced RTMP stream. This option should be set to a comma separated
> > +list of fourcc values, like @code{hvc1,av01,vp09} for multiple codecs
> > +or @code{hvc1} for only one codec. The specified list will be presented
> > +in the "fourCcLive" property of the Connect Command Message.
> > +
> > +This option should set a string like @code{hvc1,av01,vp09}
> > +for multiple codecs, or @code{hvc1} for only one codec,
> > +set codec fourcc into fourCcLive property into Connect Command Message,
>
> This paragraph looks like some unintetional leftover, as the same
> information is there in the earlier paragraph.
good catch, fixed locally
Any other comments?
>
> Regards,
> Marton
>
> > +
> > @item rtmp_flashver
> > Version of the Flash plugin used to run the SWF player. The default
> > is LNX 9,0,124,2. (When publishing, the default is FMLE/3.0 (compatible;
> > diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
> > index f0ef223f05..98718bc6da 100644
> > --- a/libavformat/rtmpproto.c
> > +++ b/libavformat/rtmpproto.c
> > @@ -127,6 +127,7 @@ typedef struct RTMPContext {
> >     int           nb_streamid;                ///< The next stream id to return on createStream calls
> >     double        duration;                   ///< Duration of the stream in seconds as returned by the server (only valid if non-zero)
> >     int           tcp_nodelay;                ///< Use TCP_NODELAY to disable Nagle's algorithm if set to 1
> > +    char          *enhanced_codecs;           ///< codec list in enhanced rtmp
> >     char          username[50];
> >     char          password[50];
> >     char          auth_params[500];
> > @@ -336,6 +337,38 @@ static int gen_connect(URLContext *s, RTMPContext *rt)
> >     ff_amf_write_field_name(&p, "app");
> >     ff_amf_write_string2(&p, rt->app, rt->auth_params);
> >
> > +    if (rt->enhanced_codecs) {
> > +        uint32_t list_len = 0;
> > +        char *fourcc_data = rt->enhanced_codecs;
> > +        int fourcc_str_len = strlen(fourcc_data);
> > +
> > +        // check the string, fourcc + ',' + ...  + end fourcc correct length should be (4+1)*n+4
> > +        if ((fourcc_str_len + 1) % 5 != 0) {
> > +            av_log(s, AV_LOG_ERROR, "Malformed rtmp_enhanched_codecs, "
> > +                   "should be of the form hvc1[,av01][,vp09][,...]\n");
> > +            return AVERROR(EINVAL);
> > +        }
> > +
> > +        list_len = (fourcc_str_len + 1) / 5;
> > +        ff_amf_write_field_name(&p, "fourCcList");
> > +        ff_amf_write_array_start(&p, list_len);
> > +
> > +        while(fourcc_data - rt->enhanced_codecs < fourcc_str_len) {
> > +            unsigned char fourcc[5];
> > +            if (!strncmp(fourcc_data, "hvc1", 4) ||
> > +                !strncmp(fourcc_data, "av01", 4) ||
> > +                !strncmp(fourcc_data, "vp09", 4)) {
> > +                    av_strlcpy(fourcc, fourcc_data, sizeof(fourcc));
> > +                    ff_amf_write_string(&p, fourcc);
> > +            } else {
> > +                    av_log(s, AV_LOG_ERROR, "Unsupported codec fourcc, %.*s\n", 4, fourcc_data);
> > +                    return AVERROR_PATCHWELCOME;
> > +            }
> > +
> > +            fourcc_data += 5;
> > +        }
> > +    }
> > +
> >     if (!rt->is_input) {
> >         ff_amf_write_field_name(&p, "type");
> >         ff_amf_write_string(&p, "nonprivate");
> > @@ -3104,6 +3137,7 @@ static const AVOption rtmp_options[] = {
> >     {"rtmp_conn", "Append arbitrary AMF data to the Connect message", OFFSET(conn), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
> >     {"rtmp_flashver", "Version of the Flash plugin used to run the SWF player.", OFFSET(flashver), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
> >     {"rtmp_flush_interval", "Number of packets flushed in the same request (RTMPT only).", OFFSET(flush_interval), AV_OPT_TYPE_INT, {.i64 = 10}, 0, INT_MAX, ENC},
> > +    {"rtmp_enhanced_codecs", "Specify the codec(s) to use in an enhanced rtmp live stream", OFFSET(enhanced_codecs), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, ENC},
> >     {"rtmp_live", "Specify that the media is a live stream.", OFFSET(live), AV_OPT_TYPE_INT, {.i64 = -2}, INT_MIN, INT_MAX, DEC, "rtmp_live"},
> >     {"any", "both", 0, AV_OPT_TYPE_CONST, {.i64 = -2}, 0, 0, DEC, "rtmp_live"},
> >     {"live", "live stream", 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, DEC, "rtmp_live"},
> > --
> > 2.40.0
> >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel@ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> >
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

Thanks
Steven
diff mbox series

Patch

diff --git a/doc/protocols.texi b/doc/protocols.texi
index b3fad55591..c7637c11c9 100644
--- a/doc/protocols.texi
+++ b/doc/protocols.texi
@@ -896,6 +896,17 @@  be named, by prefixing the type with 'N' and specifying the name before
 the value (i.e. @code{NB:myFlag:1}). This option may be used multiple
 times to construct arbitrary AMF sequences.
 
+@item rtmp_enhanced_codecs
+Specify the list of codecs the client advertises to support in an
+enhanced RTMP stream. This option should be set to a comma separated
+list of fourcc values, like @code{hvc1,av01,vp09} for multiple codecs
+or @code{hvc1} for only one codec. The specified list will be presented
+in the "fourCcLive" property of the Connect Command Message.
+
+This option should set a string like @code{hvc1,av01,vp09}
+for multiple codecs, or @code{hvc1} for only one codec,
+set codec fourcc into fourCcLive property into Connect Command Message,
+
 @item rtmp_flashver
 Version of the Flash plugin used to run the SWF player. The default
 is LNX 9,0,124,2. (When publishing, the default is FMLE/3.0 (compatible;
diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index f0ef223f05..98718bc6da 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -127,6 +127,7 @@  typedef struct RTMPContext {
     int           nb_streamid;                ///< The next stream id to return on createStream calls
     double        duration;                   ///< Duration of the stream in seconds as returned by the server (only valid if non-zero)
     int           tcp_nodelay;                ///< Use TCP_NODELAY to disable Nagle's algorithm if set to 1
+    char          *enhanced_codecs;           ///< codec list in enhanced rtmp
     char          username[50];
     char          password[50];
     char          auth_params[500];
@@ -336,6 +337,38 @@  static int gen_connect(URLContext *s, RTMPContext *rt)
     ff_amf_write_field_name(&p, "app");
     ff_amf_write_string2(&p, rt->app, rt->auth_params);
 
+    if (rt->enhanced_codecs) {
+        uint32_t list_len = 0;
+        char *fourcc_data = rt->enhanced_codecs;
+        int fourcc_str_len = strlen(fourcc_data);
+
+        // check the string, fourcc + ',' + ...  + end fourcc correct length should be (4+1)*n+4
+        if ((fourcc_str_len + 1) % 5 != 0) {
+            av_log(s, AV_LOG_ERROR, "Malformed rtmp_enhanched_codecs, "
+                   "should be of the form hvc1[,av01][,vp09][,...]\n");
+            return AVERROR(EINVAL);
+        }
+
+        list_len = (fourcc_str_len + 1) / 5;
+        ff_amf_write_field_name(&p, "fourCcList");
+        ff_amf_write_array_start(&p, list_len);
+
+        while(fourcc_data - rt->enhanced_codecs < fourcc_str_len) {
+            unsigned char fourcc[5];
+            if (!strncmp(fourcc_data, "hvc1", 4) ||
+                !strncmp(fourcc_data, "av01", 4) ||
+                !strncmp(fourcc_data, "vp09", 4)) {
+                    av_strlcpy(fourcc, fourcc_data, sizeof(fourcc));
+                    ff_amf_write_string(&p, fourcc);
+            } else {
+                    av_log(s, AV_LOG_ERROR, "Unsupported codec fourcc, %.*s\n", 4, fourcc_data);
+                    return AVERROR_PATCHWELCOME;
+            }
+
+            fourcc_data += 5;
+        }
+    }
+
     if (!rt->is_input) {
         ff_amf_write_field_name(&p, "type");
         ff_amf_write_string(&p, "nonprivate");
@@ -3104,6 +3137,7 @@  static const AVOption rtmp_options[] = {
     {"rtmp_conn", "Append arbitrary AMF data to the Connect message", OFFSET(conn), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
     {"rtmp_flashver", "Version of the Flash plugin used to run the SWF player.", OFFSET(flashver), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC},
     {"rtmp_flush_interval", "Number of packets flushed in the same request (RTMPT only).", OFFSET(flush_interval), AV_OPT_TYPE_INT, {.i64 = 10}, 0, INT_MAX, ENC},
+    {"rtmp_enhanced_codecs", "Specify the codec(s) to use in an enhanced rtmp live stream", OFFSET(enhanced_codecs), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, ENC},
     {"rtmp_live", "Specify that the media is a live stream.", OFFSET(live), AV_OPT_TYPE_INT, {.i64 = -2}, INT_MIN, INT_MAX, DEC, "rtmp_live"},
     {"any", "both", 0, AV_OPT_TYPE_CONST, {.i64 = -2}, 0, 0, DEC, "rtmp_live"},
     {"live", "live stream", 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, DEC, "rtmp_live"},